CVE-2022-37035

Publication date 2 August 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An issue was discovered in bgpd in FRRouting (FRR) 8.3. In bgp_notify_send_with_data() and bgp_process_packet() in bgp_packet.c, there is a possible use-after-free due to a race condition. This could lead to Remote Code Execution or Information Disclosure by sending crafted BGP packets. User interaction is not needed for exploitation.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
frr	25.04 plucky	Fixed 8.1-1ubuntu3
	24.10 oracular	Fixed 8.1-1ubuntu3
	24.04 LTS noble	Fixed 8.1-1ubuntu3
	23.10 mantic	Fixed 8.1-1ubuntu3
	23.04 lunar	Fixed 8.1-1ubuntu3
	22.10 kinetic	Fixed 8.1-1ubuntu3
	22.04 LTS jammy	Fixed 8.1-1ubuntu1.2
	20.04 LTS focal	Fixed 7.2.1-1ubuntu0.2+esm2
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

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Notes

mdeslaur

code doesn't appear to be present in quagga

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
frr	Upstream: https://github.com/FRRouting/frr/pull/11926 Upstream: 71ca5b0

Severity score breakdown

Parameter	Value
Base score	8.1 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H