Reachable Assertion Affecting libsixel package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.04% (63rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBSIXEL-21184805
  • published18 Oct 2026
  • disclosed11 May 2022

Introduced: 11 May 2022

CVE-2022-29977  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest libsixel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsixel package and not the libsixel package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

There is an assertion failure error in stbi__jpeg_huff_decode, stb_image.h:1894 in libsixel img2sixel 1.8.6. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted JPEG file.

CVSS Base Scores

version 3.1