CVE-2021-23180

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.

Affected

htmldoc

CVSS v3.1 NVD

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

1.35% chance of exploitation in the next 30 days, 71st percentile

Published

2022-03-02

Updated

2024-08-03

Proof-of-concept exploits (1)

• michaelrsweet/htmldoc/issues/418252★ · 2026-09-07

Security advisories

• https://bugzilla.redhat.com/show_bug.cgi?id=1967041
• https://ubuntu.com/security/CVE-2021-23180

References

• CVE Record
• NVD entry

Related

• CVE-2021-20308
• CVE-2021-23158
• CVE-2021-23165
• CVE-2021-23191
• CVE-2021-23206
• CVE-2021-26259