CVE-2023-20233 (GCVE-0-2023-20233)
Vulnerability from cvelistv5
Published
2023-09-13 16:40
Modified
2024-08-02 09:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to incorrect processing of invalid continuity check messages (CCMs). An attacker could exploit this vulnerability by sending crafted CCMs to an affected device. A successful exploit could allow the attacker to cause the CFM service to crash when a user displays information about maintenance end points (MEPs) for peer MEPs on an affected device.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco IOS XR Software |
Version: 5.2.0 Version: 5.2.1 Version: 5.2.2 Version: 5.2.4 Version: 5.2.3 Version: 5.2.5 Version: 5.3.0 Version: 5.3.1 Version: 5.3.2 Version: 5.3.3 Version: 5.3.4 Version: 6.1.1 Version: 6.1.2 Version: 6.1.3 Version: 6.1.4 Version: 6.2.1 Version: 6.2.2 Version: 6.2.3 Version: 6.2.25 Version: 6.3.2 Version: 6.3.3 Version: 6.3.15 Version: 6.4.1 Version: 6.4.2 Version: 6.4.3 Version: 6.5.1 Version: 6.5.2 Version: 6.6.2 Version: 6.6.3 Version: 6.6.25 Version: 6.6.4 Version: 7.0.1 Version: 7.0.2 Version: 7.1.1 Version: 7.1.15 Version: 7.1.2 Version: 7.1.3 Version: 6.7.1 Version: 6.7.2 Version: 6.7.3 Version: 6.7.4 Version: 7.2.1 Version: 7.2.2 Version: 7.3.1 Version: 7.3.2 Version: 7.3.3 Version: 7.4.1 Version: 7.4.2 Version: 6.8.1 Version: 6.8.2 Version: 7.5.1 Version: 7.5.3 Version: 7.5.2 Version: 7.6.1 Version: 7.6.2 Version: 7.7.1 Version: 7.7.2 Version: 6.9.1 Version: 6.9.2 |
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"version": "7.3.2"
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{
"status": "affected",
"version": "7.3.3"
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{
"status": "affected",
"version": "7.4.1"
},
{
"status": "affected",
"version": "7.4.2"
},
{
"status": "affected",
"version": "6.8.1"
},
{
"status": "affected",
"version": "6.8.2"
},
{
"status": "affected",
"version": "7.5.1"
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{
"status": "affected",
"version": "7.5.3"
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{
"status": "affected",
"version": "7.5.2"
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{
"status": "affected",
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{
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}
],
"exploits": [
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"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
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"description": "NULL Pointer Dereference",
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"providerMetadata": {
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"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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"cveId": "CVE-2023-20233",
"datePublished": "2023-09-13T16:40:15.314Z",
"dateReserved": "2022-10-27T18:47:50.369Z",
"dateUpdated": "2024-08-02T09:05:36.620Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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