Out-of-bounds Read Affecting htmldoc package, versions <1.9.13-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.12% (47th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-HTMLDOC-5802567
  • published22 Jul 2023
  • disclosed18 Jul 2023

Introduced: 18 Jul 2023

CVE-2021-34121  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Debian:unstable htmldoc to version 1.9.13-1 or higher.

NVD Description

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

An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.

CVSS Scores

version 3.1