Out-of-bounds Write Affecting man2html package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.07% (33rd percentile)

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  • Snyk IDSNYK-DEBIAN12-MAN2HTML-3022608
  • published14 Sept 2022
  • disclosed9 Sept 2022

Introduced: 9 Sep 2022

CVE-2021-40647  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 man2html.

NVD Description

Note: Versions mentioned in the description apply only to the upstream man2html package and not the man2html package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

In man2html 1.6g, a specific string being read in from a file will overwrite the size parameter in the top chunk of the heap. This at least causes the program to segmentation abort if the heap size parameter isn't aligned correctly. In version before GLIBC version 2.29 and aligned correctly, it allows arbitrary write anywhere in the programs memory.

CVSS Scores

version 3.1