CVE-2024-39517 (GCVE-0-2024-39517)
Vulnerability from cvelistv5
Published
2024-07-10 23:06
Modified
2024-08-02 04:26
Severity ?
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 (High) - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
7.1 (High) - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
VLAI Severity ?
EPSS score ?
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS).
In an EVPN/VXLAN scenario, when a high amount specific Layer 2 packets are processed by the device, it can cause the Routing Protocol Daemon (rpd) to utilize all CPU resources which causes the device to hang. A manual restart of the rpd is required to restore services.
This issue affects both IPv4 and IPv6 implementations.
This issue affects
Junos OS:
All versions earlier than 21.4R3-S7;
22.1 versions earlier than 22.1R3-S5;
22.2 versions earlier than 22.2R3-S3;
22.3 versions earlier than 22.3R3-S3;
22.4 versions earlier than 22.4R3-S2;
23.2 versions earlier than 23.2R2;
23.4 versions earlier than 23.4R1-S1.
Junos OS Evolved:
All versions earlier than 21.4R3-S7-EVO;
22.1-EVO versions earlier than 22.1R3-S5-EVO;
22.2-EVO versions earlier than 22.2R3-S3-EVO;
22.3-EVO versions earlier than 22.3R3-S3-EVO;
22.4-EVO versions earlier than 22.4R3-S2-EVO;
23.2-EVO versions earlier than 23.2R2-EVO;
23.4-EVO versions earlier than 23.4R1-S1-EVO, 23.4R2-EVO.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
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Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS |
Version: 0 ≤ Version: 21.4 ≤ Version: 22.1 ≤ Version: 22.2 ≤ Version: 22.3 ≤ Version: 22.4 ≤ Version: 23.2 ≤ Version: 23.4 ≤ |
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"id": "CVE-2024-39517",
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"timestamp": "2024-07-11T13:08:45.672820Z",
"version": "2.0.3"
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"dateUpdated": "2024-07-11T13:09:04.536Z",
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"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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"url": "https://supportportal.juniper.net/JSA79175"
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"value": "\u003cp\u003eEVPN is configured on the device:\u003cbr\u003e\u003c/p\u003e\u003ctt\u003e\u003cspan style=\"background-color: var(--wht);\"\u003e\u0026nbsp; \u003c/span\u003e\u003cspan style=\"background-color: var(--wht);\"\u003e[protocols evpn]\u003c/span\u003e\u003c/tt\u003e\u003cp\u003eTo be exposed to this issue the device needs be configured for VXLAN with either of the following statements:\u003cbr\u003e\u003c/p\u003e\u003ctt\u003e\u003cspan style=\"background-color: var(--wht);\"\u003e\u0026nbsp; [vlans \u0026lt;vlan\u0026gt; vxlan]\u003cbr\u003e\u003c/span\u003e\u003cspan style=\"background-color: var(--wht);\"\u003e\u0026nbsp; [routing-instances \u0026lt;routing-instance\u0026gt; vxlan]\u003c/span\u003e\u003c/tt\u003e"
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"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the\u0026nbsp;Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS).\u003cbr\u003e\u003cbr\u003eIn an \u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eEVPN/VXLAN\u003c/span\u003e scenario, when a high amount specific Layer 2 packets are processed by the device, it can cause the Routing Protocol Daemon (rpd) to utilize all CPU resources which causes the device to hang. A manual restart of the rpd is required to restore services.\u003cbr\u003e\u003cbr\u003eThis issue affects both IPv4 and IPv6 implementations.\u003cbr\u003e\u003cp\u003eThis issue affects\u003cbr\u003eJunos OS:\u003cbr\u003eAll versions earlier than\u0026nbsp;21.4R3-S7;\u003cbr\u003e22.1\u0026nbsp;versions earlier than 22.1R3-S5;\u003cbr\u003e22.2 versions earlier than\u0026nbsp;22.2R3-S3;\u003cbr\u003e22.3 versions earlier than\u0026nbsp;22.3R3-S3;\u003cbr\u003e22.4 versions earlier than\u0026nbsp;22.4R3-S2;\u003cbr\u003e23.2 versions earlier than\u0026nbsp;23.2R2;\u003cbr\u003e23.4 versions earlier than\u0026nbsp;23.4R1-S1.\u003c/p\u003eJunos OS Evolved:\u003cbr\u003eAll versions earlier than\u0026nbsp;21.4R3-S7-EVO;\u003cbr\u003e22.1-EVO versions earlier than\u0026nbsp;22.1R3-S5-EVO;\u003cbr\u003e22.2-EVO versions earlier than\u0026nbsp;22.2R3-S3-EVO;\u003cbr\u003e22.3-EVO versions earlier than 22.3R3-S3-EVO;\u003cbr\u003e22.4-EVO versions earlier than\u0026nbsp;22.4R3-S2-EVO;\u003cbr\u003e23.2-EVO versions earlier than\u0026nbsp;23.2R2-EVO;\u003cbr\u003e23.4-EVO versions earlier than\u0026nbsp;23.4R1-S1-EVO, 23.4R2-EVO."
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"source": {
"advisory": "JSA79175",
"defect": [
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"discovery": "INTERNAL"
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"title": "Junos OS and Junos OS Evolved: Upon processing specific L2 traffic, rpd can hang in devices with EVPN/VXLAN configured",
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"cveId": "CVE-2024-39517",
"datePublished": "2024-07-10T23:06:40.329Z",
"dateReserved": "2024-06-25T15:12:53.239Z",
"dateUpdated": "2024-08-02T04:26:15.885Z",
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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