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69 vulnerabilities found for BIND 9 by ISC
CVE-2026-13321 (GCVE-0-2026-13321)
Vulnerability from cvelistv5
Published
2026-07-22 14:16
Modified
2026-07-22 18:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-346 - Origin Validation Error
Summary
The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the signer's zone.
This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-13204 (GCVE-0-2026-13204)
Vulnerability from cvelistv5
Published
2026-07-22 14:15
Modified
2026-07-22 18:52
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable Assertion
Summary
If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof.
This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-12617 (GCVE-0-2026-12617)
Vulnerability from cvelistv5
Published
2026-07-22 14:14
Modified
2026-07-22 18:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable Assertion
Summary
The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the resolver, and the authoritative server responds positively to the A query but delays the DNAME response and later responds negatively, `named` may quit unexpectedly. Or, if a client queries for a CNAME and A record for the same name to the resolver, and the authoritative server responds positively to the A query but delays the CNAME response and later responds with a self-referential CNAME, the same failure may occur.
This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2026-11721 (GCVE-0-2026-11721)
Vulnerability from cvelistv5
Published
2026-07-22 14:13
Modified
2026-07-22 18:52
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Summary
It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes `named` to produce a wildcard name for a zone that is shorter than the attacker's zone, which can result in cache poisoning. For this attack to have any effect, the resolver under attack must have set `synth-from-dnssec yes;` (which is the default).
This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-11622 (GCVE-0-2026-11622)
Vulnerability from cvelistv5
Published
2026-07-22 14:12
Modified
2026-07-22 18:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the limit configured in the `max-cache-size` parameter.
This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-11605 (GCVE-0-2026-11605)
Vulnerability from cvelistv5
Published
2026-07-22 14:11
Modified
2026-07-22 18:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-408 - Incorrect Behavior Order - Early Amplification
Summary
The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns many valid but superfluous RRSIG records causes the validator to waste disproportionate CPU time.
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References
| URL | Tags | |
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Impacted products
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CVE-2026-11331 (GCVE-0-2026-11331)
Vulnerability from cvelistv5
Published
2026-07-22 14:10
Modified
2026-07-22 18:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-790 - Improper Filtering of Special Elements
Summary
An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not handled correctly and may lead to defeating the RPZ rule. It also may lead to an unexpected exit of the BIND 9 software.
This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-10822 (GCVE-0-2026-10822)
Vulnerability from cvelistv5
Published
2026-07-22 14:09
Modified
2026-07-22 18:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and may subsequently abort and exit.
BIND will first need to store a DNS record for a key (KEY, DNSKEY, etc.). That key must specify a PRIVATEDNS algorithm (253), and in the algorithm identifier, improperly give a length longer than the actual identifier data. The invalid identifier will be stored. If BIND later needs to render that record to text, it will use the invalid length during processing, leading to a consistency check failing.
This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-10723 (GCVE-0-2026-10723)
Vulnerability from cvelistv5
Published
2026-07-22 14:08
Modified
2026-07-22 18:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Summary
BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authenticated NXDOMAIN responses.
This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
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| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-5950 (GCVE-0-2026-5950)
Vulnerability from cvelistv5
Published
2026-05-20 13:10
Modified
2026-05-20 13:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-606 - Unchecked Input for Loop Condition
Summary
An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions.
This issue affects BIND 9 versions 9.18.36 through 9.18.48, 9.20.8 through 9.20.22, 9.21.7 through 9.21.21, 9.18.36-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-5947 (GCVE-0-2026-5947)
Vulnerability from cvelistv5
Published
2026-05-20 13:10
Modified
2026-08-24 12:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG(0), it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached (as would occur during a query flood), and that same DNS message is discarded per the limit, there is a brief window of time while the SIG(0) validation may attempt to read the now-discarded DNS message.
This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1.
BIND 9 versions 9.18.28 through 9.18.49 and 9.18.28-S1 through 9.18.49-S1 are NOT affected.
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CVE-2026-5946 (GCVE-0-2026-5946)
Vulnerability from cvelistv5
Published
2026-05-20 13:10
Modified
2026-08-27 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Multiple flaws have been identified in `named` related to the handling of DNS messages whose CLASS is not Internet (`IN`) — for example, `CHAOS` or `HESIOD`, or DNS messages that specify meta-classes (`ANY` or `NONE`) in the question section. Specially crafted requests reaching the affected code paths — recursion, dynamic updates (`UPDATE`), zone change notifications (`NOTIFY`), or processing of `IN`-specific record types in non-`IN` data — can cause assertion failures in `named`.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-3593 (GCVE-0-2026-3593)
Vulnerability from cvelistv5
Published
2026-05-20 13:09
Modified
2026-08-24 12:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A use-after-free vulnerability exists within the DNS-over-HTTPS implementation.
This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1.
BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-3592 (GCVE-0-2026-3592)
Vulnerability from cvelistv5
Published
2026-05-20 13:09
Modified
2026-05-20 13:42
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-408 - Incorrect Behavior Order - Early Amplification
Summary
BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-3039 (GCVE-0-2026-3039)
Vulnerability from cvelistv5
Published
2026-05-20 13:09
Modified
2026-08-27 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-771 - Missing Reference to Active Allocated Resource
Summary
BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS environments.
This issue affects BIND 9 versions 9.0.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.9.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-3591 (GCVE-0-2026-3591)
Vulnerability from cvelistv5
Published
2026-03-25 13:34
Modified
2026-03-25 14:13
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure.
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CVE-2026-3119 (GCVE-0-2026-3119)
Vulnerability from cvelistv5
Published
2026-03-25 13:31
Modified
2026-03-25 14:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable Assertion
Summary
Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration.
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CVE-2026-3104 (GCVE-0-2026-3104)
Vulnerability from cvelistv5
Published
2026-03-25 13:29
Modified
2026-08-21 12:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Summary
A specially crafted domain can be used to cause a memory leak in a BIND resolver simply by querying this domain.
This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.
BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
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|---|---|---|
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CVE-2026-1519 (GCVE-0-2026-1519)
Vulnerability from cvelistv5
Published
2026-03-25 13:25
Modified
2026-08-25 12:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-606 - Unchecked Input for Loop Condition
Summary
If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/docs/why-does-my-authoritative-server-make-recursive-queries).
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.46, 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.46-S1, and 9.20.9-S1 through 9.20.20-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-13878 (GCVE-0-2025-13878)
Vulnerability from cvelistv5
Published
2026-01-21 14:43
Modified
2026-08-24 12:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable Assertion
Summary
Malformed BRID/HHIT records can cause `named` to terminate unexpectedly.
This issue affects BIND 9 versions 9.18.40 through 9.18.43, 9.20.13 through 9.20.17, 9.21.12 through 9.21.16, 9.18.40-S1 through 9.18.43-S1, and 9.20.13-S1 through 9.20.17-S1.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2025-40780 (GCVE-0-2025-40780)
Vulnerability from cvelistv5
Published
2025-10-22 15:48
Modified
2025-11-04 21:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-341 - Predictable from Observable State
Summary
In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use.
This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-40778 (GCVE-0-2025-40778)
Vulnerability from cvelistv5
Published
2025-10-22 15:47
Modified
2026-02-26 16:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data
Summary
Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-8677 (GCVE-0-2025-8677)
Vulnerability from cvelistv5
Published
2025-10-22 15:43
Modified
2025-11-04 21:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Summary
Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion.
This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-40777 (GCVE-0-2025-40777)
Vulnerability from cvelistv5
Published
2025-07-16 17:38
Modified
2025-11-04 21:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-617 - Reachable Assertion
Summary
If a `named` caching resolver is configured with `serve-stale-enable` `yes`, and with `stale-answer-client-timeout` set to `0` (the only allowable value other than `disabled`), and if the resolver, in the process of resolving a query, encounters a CNAME chain involving a specific combination of cached or authoritative records, the daemon will abort with an assertion failure.
This issue affects BIND 9 versions 9.20.0 through 9.20.10, 9.21.0 through 9.21.9, and 9.20.9-S1 through 9.20.10-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-40776 (GCVE-0-2025-40776)
Vulnerability from cvelistv5
Published
2025-07-16 13:41
Modified
2025-07-22 14:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data
Summary
A `named` caching resolver that is configured to send ECS (EDNS Client Subnet) options may be vulnerable to a cache-poisoning attack.
This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-40775 (GCVE-0-2025-40775)
Vulnerability from cvelistv5
Published
2025-05-21 12:35
Modified
2025-05-23 13:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-232 - Improper Handling of Undefined Values
Summary
When an incoming DNS protocol message includes a Transaction Signature (TSIG), BIND always checks it. If the TSIG contains an invalid value in the algorithm field, BIND immediately aborts with an assertion failure.
This issue affects BIND 9 versions 9.20.0 through 9.20.8 and 9.21.0 through 9.21.7.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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},
"title": "CISA ADP Vulnrichment"
},
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"descriptions": [
{
"lang": "en",
"value": "When an incoming DNS protocol message includes a Transaction Signature (TSIG), BIND always checks it. If the TSIG contains an invalid value in the algorithm field, BIND immediately aborts with an assertion failure.\nThis issue affects BIND 9 versions 9.20.0 through 9.20.8 and 9.21.0 through 9.21.7."
}
],
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}
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CVE-2024-12705 (GCVE-0-2024-12705)
Vulnerability from cvelistv5
Published
2025-01-29 21:40
Modified
2025-02-07 17:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic.
This issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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},
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}
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}
]
}
],
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CVE-2024-11187 (GCVE-0-2024-11187)
Vulnerability from cvelistv5
Published
2025-01-29 21:40
Modified
2025-02-11 19:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Summary
It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to use disproportionate resources processing the queries. Zones will usually need to have been deliberately crafted to attack this exposure.
This issue affects BIND 9 versions 9.11.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.32-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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{
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}
],
"title": "CVE Program Container"
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],
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}
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]
}
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CVE-2024-4076 (GCVE-0-2024-4076)
Vulnerability from cvelistv5
Published
2024-07-23 14:40
Modified
2025-02-13 17:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Client queries that trigger serving stale data and that also require lookups in local authoritative zone data may result in an assertion failure.
This issue affects BIND 9 versions 9.16.13 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.11.33-S1 through 9.11.37-S1, 9.16.13-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.27-S1.
References
Impacted products
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"status": "affected",
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}
],
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{
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"value": "ISC would like to thank Daniel Str\u00e4nger for bringing this vulnerability to our attention."
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"descriptions": [
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"baseScore": 7.5,
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"url": "https://kb.isc.org/docs/cve-2024-4076"
},
{
"url": "http://www.openwall.com/lists/oss-security/2024/07/23/1"
},
{
"url": "http://www.openwall.com/lists/oss-security/2024/07/31/2"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.28, 9.20.0, or 9.18.28-S1."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Assertion failure when serving both stale cache data and authoritative zone content",
"workarounds": [
{
"lang": "en",
"value": "Disabling serve-stale answers mitigates this issue."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
"assignerShortName": "isc",
"cveId": "CVE-2024-4076",
"datePublished": "2024-07-23T14:40:57.256Z",
"dateReserved": "2024-04-23T13:59:44.699Z",
"dateUpdated": "2025-02-13T17:53:23.437Z",
"state": "PUBLISHED"
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CVE-2024-1975 (GCVE-0-2024-1975)
Vulnerability from cvelistv5
Published
2024-07-23 14:38
Modified
2025-02-13 17:32
Severity ?
VLAI Severity ?
EPSS score ?
Summary
If a server hosts a zone containing a "KEY" Resource Record, or a resolver DNSSEC-validates a "KEY" Resource Record from a DNSSEC-signed domain in cache, a client can exhaust resolver CPU resources by sending a stream of SIG(0) signed requests.
This issue affects BIND 9 versions 9.0.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.49-S1, and 9.18.11-S1 through 9.18.27-S1.
References
Impacted products
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*",
"cpe:2.3:a:isc:bind:9.16.0:*:*:*:*:*:*:*",
"cpe:2.3:a:isc:bind:9.16.8:s1:*:*:*:*:*:*",
"cpe:2.3:a:isc:bind:9.18.0:*:*:*:-:*:*:*",
"cpe:2.3:a:isc:bind:9.18.11:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.19.0:*:*:*:-:*:*:*",
"cpe:2.3:a:isc:bind:9.9.3:s1:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"product": "bind",
"vendor": "isc",
"versions": [
{
"lessThanOrEqual": "9.11.37",
"status": "affected",
"version": "9.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.16.50",
"status": "affected",
"version": "9.16.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.16.49-s1",
"status": "affected",
"version": "9.16.8",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.27",
"status": "affected",
"version": "9.18.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.27-s1",
"status": "affected",
"version": "9.18.11",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.19.24",
"status": "affected",
"version": "9.19.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.11.37-s1",
"status": "affected",
"version": "9.9.3",
"versionType": "custom"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-1975",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-23T17:12:04.527878Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-07-24T20:08:56.485Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-01T18:56:22.635Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://security.netapp.com/advisory/ntap-20240731-0002/"
},
{
"name": "CVE-2024-1975",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://kb.isc.org/docs/cve-2024-1975"
},
{
"tags": [
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2024/07/23/1"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "BIND 9",
"vendor": "ISC",
"versions": [
{
"lessThanOrEqual": "9.11.37",
"status": "affected",
"version": "9.0.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.16.50",
"status": "affected",
"version": "9.16.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.27",
"status": "affected",
"version": "9.18.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.19.24",
"status": "affected",
"version": "9.19.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.11.37-S1",
"status": "affected",
"version": "9.9.3-S1",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.16.49-S1",
"status": "affected",
"version": "9.16.8-S1",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.27-S1",
"status": "affected",
"version": "9.18.11-S1",
"versionType": "custom"
}
]
}
],
"datePublic": "2024-07-23T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "If a server hosts a zone containing a \"KEY\" Resource Record, or a resolver DNSSEC-validates a \"KEY\" Resource Record from a DNSSEC-signed domain in cache, a client can exhaust resolver CPU resources by sending a stream of SIG(0) signed requests.\nThis issue affects BIND 9 versions 9.0.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.49-S1, and 9.18.11-S1 through 9.18.27-S1."
}
],
"exploits": [
{
"lang": "en",
"value": "This flaw was discovered in internal testing. We are not aware of any active exploits."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Depletion of available CPU resources may cause BIND to become unresponsive."
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-07-31T11:05:55.761Z",
"orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
"shortName": "isc"
},
"references": [
{
"name": "CVE-2024-1975",
"tags": [
"vendor-advisory"
],
"url": "https://kb.isc.org/docs/cve-2024-1975"
},
{
"url": "http://www.openwall.com/lists/oss-security/2024/07/23/1"
},
{
"url": "http://www.openwall.com/lists/oss-security/2024/07/31/2"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.28, 9.20.0, or 9.18.28-S1."
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "SIG(0) can be used to exhaust CPU resources",
"workarounds": [
{
"lang": "en",
"value": "No workarounds known."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
"assignerShortName": "isc",
"cveId": "CVE-2024-1975",
"datePublished": "2024-07-23T14:38:57.143Z",
"dateReserved": "2024-02-28T16:31:07.894Z",
"dateUpdated": "2025-02-13T17:32:28.908Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}