CVE-2020-21048 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

https://github.com/saitoha/libsixel/releases/tag/v1.8.4 https://github.com/saitoha/libsixel/blob/master/ChangeLog https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037 https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad https://github.com/saitoha/libsixel/issues/73

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5