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.
History

Fri, 24 Apr 2026 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Saitoha
Saitoha libsixel
CPEs cpe:2.3:a:libsixel_project:libsixel:*:*:*:*:*:*:*:* cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:*
Vendors & Products Libsixel Project
Libsixel Project libsixel
Saitoha
Saitoha libsixel

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T14:22:25.546Z

Reserved: 2020-08-13T00:00:00.000Z

Link: CVE-2020-21048

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-14T16:15:08.403

Modified: 2026-04-24T12:56:58.623

Link: CVE-2020-21048

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.