CVE-2021-43612

2023-04-1522:15:07

Alpine Linux Development Team

security.alpinelinux.org

lldpd

sonmp packets

out-of-bounds

heap read

vulnerability

unix

CVSS3

7.5

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

AI Score

7.4

Confidence

High

EPSS

0.003

Percentile

69.9%

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
Alpineedge-communitynoarchlldpd< 1.0.13-r0UNKNOWN
Alpine3.14-communitynoarchlldpd< 1.0.13-r0UNKNOWN
Alpine3.15-communitynoarchlldpd< 1.0.13-r0UNKNOWN
Alpine3.16-communitynoarchlldpd< 1.0.13-r0UNKNOWN
Alpine3.17-communitynoarchlldpd< 1.0.13-r0UNKNOWN
Alpine3.18-communitynoarchlldpd< 1.0.13-r0UNKNOWN
Alpine3.19-communitynoarchlldpd< 1.0.13-r0UNKNOWN
Alpine3.20-communitynoarchlldpd< 1.0.13-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-community	noarch	lldpd	< 1.0.13-r0	UNKNOWN
Alpine	3.14-community	noarch	lldpd	< 1.0.13-r0	UNKNOWN
Alpine	3.15-community	noarch	lldpd	< 1.0.13-r0	UNKNOWN
Alpine	3.16-community	noarch	lldpd	< 1.0.13-r0	UNKNOWN
Alpine	3.17-community	noarch	lldpd	< 1.0.13-r0	UNKNOWN
Alpine	3.18-community	noarch	lldpd	< 1.0.13-r0	UNKNOWN
Alpine	3.19-community	noarch	lldpd	< 1.0.13-r0	UNKNOWN
Alpine	3.20-community	noarch	lldpd	< 1.0.13-r0	UNKNOWN