CVE-2020-21050

MEDIUM

Libsixel < 1.8.3 - Out-of-Bounds Write

Title source: rule
STIX 2.1

Description

Libsixel prior to v1.8.3 contains a stack buffer overflow in the function gif_process_raster at fromgif.c.

References (6)

Core 6
Core References
Technical Description x_refsource_misc
https://cwe.mitre.org/data/definitions/121.html
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/saitoha/libsixel/blob/master/ChangeLog
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/saitoha/libsixel/releases/tag/v1.8.5
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/saitoha/libsixel/issues/75

Scores

CVSS v3 6.5
EPSS 0.0094
EPSS Percentile 76.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-787
Status published
Products (2)
libsixel_project/libsixel < 1.8.3
saitoha/libsixel < 1.8.3
Published Sep 14, 2021
Tracked Since Feb 18, 2026