Vulnerability Details : CVE-2021-45340

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.

Vulnerability category: Memory CorruptionDenial of service

Published 2022-01-25 12:15:08

Updated 2022-01-28 20:04:10

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-45340

Probability of exploitation activity in the next 30 days: 0.07%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 30 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-45340

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	nvd@nist.gov
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	2.8	3.6	nvd@nist.gov
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-45340

CWE-476 NULL Pointer Dereference

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.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-45340

https://github.com/libsixel/libsixel/issues/51

NULL pointer dereference in stb_image.h · Issue #51 · libsixel/libsixel · GitHub
Exploit;Issue Tracking;Patch;Third Party Advisory

Products affected by CVE-2021-45340

Libsixel Project » Libsixel
Versions up to, including, (<=) 1.10.3
cpe:2.3:a:libsixel_project:libsixel:*:*:*:*:*:*:*:*
Matching versions