VULNERABILITY INTELLIGENCE
CVE-2021-40648
CVSS score5.5 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2022-09-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Description
In man2html 1.6g, a filename can be created to overwrite the previous size parameter of the next chunk and the fd, bk, fd_nextsize, bk_nextsize of the current chunk. The next chunk is then freed later on, causing a freeing of an arbitrary amount of memory.
Weakness classification
- nvd@nist.gov: CWE-20
Primary references
- cve@mitre.org — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory