High severity7.8NVD Advisory· Published Mar 2, 2022· Updated Jun 17, 2026
CVE-2021-23180
CVE-2021-23180
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.
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Affected products
3Patches
Vulnerability mechanics
References
4- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
- github.com/michaelrsweet/htmldoc/commit/19c582fb32eac74b57e155cffbb529377a9e751anvdPatchThird Party Advisory
- github.com/michaelrsweet/htmldoc/issues/418nvdExploitIssue TrackingThird Party Advisory
- ubuntu.com/security/CVE-2021-23180nvdThird Party Advisory
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