Description
A flaw was found in htmldoc in v1.9.12 and before. Null pointer dereference in file_extension(),in file.c may lead to execute arbitrary code and denial of service.
References (4)
Core 4
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/michaelrsweet/htmldoc/issues/418
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1967041
Third Party Advisory x_refsource_misc
https://ubuntu.com/security/CVE-2021-23180
Patch, Third Party Advisory x_refsource_misc
https://github.com/michaelrsweet/htmldoc/commit/19c582fb32eac74b57e155cffbb529377a9e751a
Scores
CVSS v3
7.8
EPSS
0.0028
EPSS Percentile
51.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-476
Status
published
Products (1)
htmldoc_project/htmldoc
< 1.9.12
Published
Mar 02, 2022
Tracked Since
Feb 18, 2026