Description
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.
References (4)
Core 4
Core References
Release Notes
https://github.com/lldpd/lldpd/releases/tag/1.0.17
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2023/09/msg00025.html
Third Party Advisory vendor-advisory
https://www.debian.org/security/2023/dsa-5505
Scores
CVSS v3
9.8
EPSS
0.0015
EPSS Percentile
35.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-125
Status
published
Products (1)
lldpd_project/lldpd
< 1.0.17
Published
Sep 05, 2023
Tracked Since
Feb 18, 2026