Vulnerability · Published Mar 16, 2022 · Assigned by redhat
CVE-2021-23165
Critical 9.8
In plain English
A critical-severity heap buffer overflow in htmldoc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.5% (higher than 89% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)3.5%top 10.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in htmldoc before v1.9.12. Heap buffer overflow in pspdf_prepare_outpages(), in ps-pdf.cxx may lead to execute arbitrary code and denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | htmldoc | 1.9.11-4 | DEBIAN-CVE-2021-23165 |
| Debian:13 | htmldoc | 1.9.11-4 | DEBIAN-CVE-2021-23165 |
| Debian:14 | htmldoc | 1.9.11-4 | DEBIAN-CVE-2021-23165 |
Affected products (as reported)
Weakness: CWE-122
References
- https://github.com/michaelrsweet/htmldoc/issues/413 x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1967014 x_refsource_MISC
- https://github.com/michaelrsweet/htmldoc/commit/6e8a95561988500b5b5ae4861b3b0cbf4fba517f x_refsource_MISC
- https://github.com/michaelrsweet/htmldoc/commit/6e8a95561988500b5b5ae4861b3b0cbf4fba517f.patch x_refsource_MISC