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CVE-2023-41910

Published: 5 September 2023

An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs, a malicious actor can remotely force the lldpd daemon to perform an out-of-bounds read on heap memory. This occurs in cdp_decode in daemon/protocols/cdp.c.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
lldpd
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

lunar Ignored
(end of life, was needs-triage)
mantic Not vulnerable
(1.0.17-1)
trusty Ignored
(end of standard support)
upstream
Released (1.0.17-1)
xenial Needs triage

Patches:
upstream: https://github.com/lldpd/lldpd/commit/a9aeabdf879c25c584852a0bb5523837632f099b

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H