#VU82892 Buffer overflow in frr - CVE-2023-41361

Vulnerability identifier: #VU82892

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-41361

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
frr
Other software / Other software solutions

Vendor: frrouting.org

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in bgpd/bgp_open.c. A remote attacker can send specially crafted data to the application, trigger memory corruption and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

frr: 9.0

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External links
https://github.com/FRRouting/frr/pull/14241
https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.