NA

CVE-2021-40647

Published: 09/09/2022 Updated: 08/08/2023
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 0

Vulnerability Summary

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.

Vulnerability Trend

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man2html project man2html 1.6g

Vendor Advisories

Debian Bug report logs - #1021738 man2html: CVE-2021-40647 CVE-2021-40648 Package: src:man2html; Maintainer for src:man2html is Robert Luberda <robert@debianorg>; Reported by: Moritz Mühlenhoff <jmm@inutilorg> Date: Thu, 13 Oct 2022 19:18:02 UTC Severity: important Tags: security, upstream Reply or subscribe ...
Debian Bug report logs - #1062069 man2html: CVE-2021-40648 Package: src:man2html; Maintainer for src:man2html is Robert Luberda <robert@debianorg>; Reported by: Moritz Mühlenhoff <jmm@inutilorg> Date: Thu, 13 Oct 2022 19:18:02 UTC Severity: important Tags: moreinfo, security, upstream Reply or subscribe to t ...