CVE-2021-43612

Published: Apr 15, 2023Modified: Feb 6, 2025

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

In lldpd before 1.0.13, when decoding SONMP packets in the sonmp_decode function, it's possible to trigger an out-of-bounds heap read via short SONMP packets.

Affected (4)

Products: Lldpd Project: Lldpd · Fedoraproject: Fedora

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Lldpd Project Lldpd	Before 1.0.13

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 36
Fedoraproject Fedora	Version 37
Fedoraproject Fedora	Version 38

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (12)

https://github.com/lldpd/lldpd/commit/73d42680fce8598324364dbb31b9bc3b8320adf7

Source: cve@mitre.org

Patch

https://github.com/lldpd/lldpd/compare/1.0.12...1.0.13

Source: cve@mitre.org

PatchRelease Notes

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/

Source: cve@mitre.org

https://lldpd.github.io/security.html

Source: cve@mitre.org

PatchThird Party Advisory

https://github.com/lldpd/lldpd/commit/73d42680fce8598324364dbb31b9bc3b8320adf7