CVEvulnerability

CVE-2021-40647

5.5 MEDIUM Published 2022-09-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-09-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses
CWE-787

Description

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.

Affected configurations

• man2html project man2html 1.6g

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References