Out-of-bounds Write Affecting libsixel package, versions <1:1.8.7-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.26% (17th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBSIXEL-12143473
  • published22 Aug 2025
  • disclosed21 Aug 2025

Introduced: 21 Aug 2025

CVE-2025-9300  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Debian:unstable libsixel to version 1:1.8.7-1 or higher.

NVD Description

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

A vulnerability was found in saitoha libsixel up to 1.10.3. Affected by this issue is the function sixel_debug_print_palette of the file src/encoder.c of the component img2sixel. The manipulation results in stack-based buffer overflow. The attack must be initiated from a local position. The exploit has been made public and could be used. The patch is identified as 316c086e79d66b62c0c4bc66229ee894e4fdb7d1. Applying a patch is advised to resolve this issue.

CVSS Base Scores

version 3.1