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Medium severity6.5NVD Advisory· Published Sep 14, 2021· Updated Apr 24, 2026

CVE-2020-21048

CVE-2020-21048

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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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2

Saitoha/Libsixel2 versions
cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:*range: <1.8.4
- (no CPE)range: <1.8.4

Patches

Vulnerability mechanics

References

5

github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037nvdPatchThird Party Advisory
github.com/saitoha/libsixel/issues/73nvdExploitIssue TrackingPatchThird Party Advisory
github.com/saitoha/libsixel/blob/master/ChangeLognvdRelease NotesThird Party Advisory
github.com/saitoha/libsixel/releases/tag/v1.8.4nvdRelease NotesThird Party Advisory
bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adadnvdBroken Link

News mentions

0

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