CVE-2021-20308

CRITICAL

htmldoc < 1.9.11 - Integer Overflow

Title source: llm
STIX 2.1

Description

Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.

References (3)

Core 3
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/michaelrsweet/htmldoc/issues/423
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1946289
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2021/07/msg00000.html

Scores

CVSS v3 9.8
EPSS 0.0248
EPSS Percentile 82.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-190
Status published
Products (2)
debian/debian_linux 9.0
htmldoc_project/htmldoc < 1.9.11
Published Apr 05, 2021
Tracked Since Feb 18, 2026