CVE-2020-21048

6.5 MEDIUM
Published: September 14, 2021 Modified: April 24, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad
Source: cve@mitre.org
Broken Link
https://github.com/saitoha/libsixel/blob/master/ChangeLog
Source: cve@mitre.org
Release Notes Third Party Advisory
https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037
Source: cve@mitre.org
Patch Third Party Advisory
https://github.com/saitoha/libsixel/issues/73
Source: cve@mitre.org
Exploit Issue Tracking Patch Third Party Advisory
https://github.com/saitoha/libsixel/releases/tag/v1.8.4
Source: cve@mitre.org
Release Notes Third Party Advisory
https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
https://github.com/saitoha/libsixel/blob/master/ChangeLog
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Third Party Advisory
https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://github.com/saitoha/libsixel/issues/73
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Issue Tracking Patch Third Party Advisory
https://github.com/saitoha/libsixel/releases/tag/v1.8.4
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Third Party Advisory

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
0.4%
61th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

saitoha