CVE Vulnerabilities

CVE-2021-45340

NULL Pointer Dereference

Published: Jan 25, 2022 | Modified: Jan 28, 2022
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

In Libsixel prior to and including v1.10.3, a NULL pointer dereference in the stb_image.h component of libsixel allows attackers to cause a denial of service (DOS) via a crafted PICT file.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Libsixel Libsixel_project * 1.10.3 (including)
Libsixel Ubuntu bionic *
Libsixel Ubuntu impish *
Libsixel Ubuntu kinetic *
Libsixel Ubuntu lunar *
Libsixel Ubuntu mantic *
Libsixel Ubuntu trusty *
Libsixel Ubuntu xenial *

Potential Mitigations

References