CVE-2021-43612

2023-04-1522:15:07

Debian Security Bug Tracker

security-tracker.debian.org

lldpd

vulnerability

sonmp

packets

decoding

out-of-bounds

heap read

unix

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

66.4%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12alllldpd< 1.0.13-1lldpd_1.0.13-1_all.deb
Debian11alllldpd< 1.0.11-1+deb11u1lldpd_1.0.11-1+deb11u1_all.deb
Debian999alllldpd< 1.0.13-1lldpd_1.0.13-1_all.deb
Debian13alllldpd< 1.0.13-1lldpd_1.0.13-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	lldpd	< 1.0.13-1	lldpd_1.0.13-1_all.deb
Debian	11	all	lldpd	< 1.0.11-1+deb11u1	lldpd_1.0.11-1+deb11u1_all.deb
Debian	999	all	lldpd	< 1.0.13-1	lldpd_1.0.13-1_all.deb
Debian	13	all	lldpd	< 1.0.13-1	lldpd_1.0.13-1_all.deb