CVE-2021-23158

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A flaw was found in htmldoc in v1.9.12. Double-free in function pspdf_export(),in ps-pdf.cxx may result in a write-what-where condition, allowing an attacker to execute arbitrary code and denial of service.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

Vendor	Product	Versions
n/a	htmldoc	Affects v1.9.12 and before.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1967018Issue Tracking, Third Party Advisory
https://github.com/michaelrsweet/htmldoc/commit/369b2ea1fd0d0537ba707f20a2f047b6afd2fbdcPatch, Third Party Advisory
https://github.com/michaelrsweet/htmldoc/issues/414Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1967018Issue Tracking, Third Party Advisory
https://github.com/michaelrsweet/htmldoc/commit/369b2ea1fd0d0537ba707f20a2f047b6afd2fbdcPatch, Third Party Advisory
https://github.com/michaelrsweet/htmldoc/issues/414Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Mar 16, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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