CVE-2024-39516: Junos OS and Junos OS Evolved: With certain BGP options enabled, receipt of specifically malformed BGP update causes RPD crash
First published: Wed Oct 09 2024(Updated: )
An Out-of-Bounds Read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems configured in either of two ways: * systems with BGP traceoptions enabled * systems with BGP traffic engineering configured This issue can affect iBGP and eBGP with any address family configured. The specific attribute involved is non-transitive, and will not propagate across a network. This issue affects: Junos OS: * All versions before 21.4R3-S8, * 22.2 before 22.2R3-S5, * 22.3 before 22.3R3-S4, * 22.4 before 22.4R3-S3, * 23.2 before 23.2R2-S2, * 23.4 before 23.4R2; Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * 22.2-EVO before 22.2R3-S5-EVO, * 22.3-EVO before 22.3R3-S4-EVO, * 22.4-EVO before 22.4R3-S3-EVO, * 23.2-EVO before 23.2R2-S2-EVO, * 23.4-EVO before 23.4R2-EVO.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper Junos | <21.4R3-S8<22.2R3-S5<22.3R3-S4<22.4R3-S3<23.2R2-S2<23.4R2 | |
| Juniper Networks Junos OS | <21.4R3-S8-EVO<22.2R3-S5-EVO<22.3R3-S4-EVO<22.4R3-S3-EVO<23.2R2-S2-EVO<23.4R2-EVO |
Remedy
The following software releases have been updated to resolve this specific issue: Junos OS: 21.4R3-S8, 22.2R3-S5*, 22.3R3-S4*, 22.4R3-S3, 23.2R2-S2, 23.4R2, 24.2R1, and all subsequent releases. Junos OS Evolved: 21.4R3-S8-EVO, 22.2R3-S5-EVO*, 22.3R3-S4-EVO*, 22.4R3-S3-EVO, 23.2R2-S2-EVO, 23.4R2-EVO, 24.2R1-EVO, 24.2R2-EVO, 24.4R1-EVO*, and all subsequent releases. *Future release
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-39516?
CVE-2024-39516 is classified as a Denial of Service vulnerability.
How do I fix CVE-2024-39516?
To fix CVE-2024-39516, apply the latest security updates provided by Juniper Networks for affected versions of Junos OS and Junos OS Evolved.
What versions are affected by CVE-2024-39516?
CVE-2024-39516 affects Juniper Networks Junos OS and Junos OS Evolved versions up to 21.4R3-S8, 22.2R3-S5, 22.3R3-S4, 22.4R3-S3, 23.2R2-S2, and 23.4R2.
Can CVE-2024-39516 be exploited remotely?
Yes, CVE-2024-39516 can be exploited by unauthenticated network-based attackers.
What impact does CVE-2024-39516 have on network services?
CVE-2024-39516 can cause the routing protocol daemon (rpd) to crash and restart, leading to a temporary denial of service for network routing.
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