CVE-2020-21048

MEDIUM

Libsixel < 1.8.4 - Denial of Service

Title source: rule
STIX 2.1

Description

An issue in the dither.c component of libsixel prior to v1.8.4 allows attackers to cause a denial of service (DOS) via a crafted PNG file.

References (5)

Core 5
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/saitoha/libsixel/issues/73
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/saitoha/libsixel/releases/tag/v1.8.4

Scores

CVSS v3 6.5
EPSS 0.0041
EPSS Percentile 61.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

Status published
Products (2)
libsixel_project/libsixel < 1.8.4
saitoha/libsixel < 1.8.4
Published Sep 14, 2021
Tracked Since Feb 18, 2026