What’s Vulnerable › Vulnerabilities

CVE-2021-23158

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-16 · updated 2026-06-17
• Weakness: CWE-415

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.

Affected products

• htmldoc: 1.9.12

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1967018
• https://github.com/michaelrsweet/htmldoc/commit/369b2ea1fd0d0537ba707f20a2f047b6afd2fbdc
• https://github.com/michaelrsweet/htmldoc/issues/414
• https://bugzilla.redhat.com/show_bug.cgi?id=1967018
• https://github.com/michaelrsweet/htmldoc/commit/369b2ea1fd0d0537ba707f20a2f047b6afd2fbdc
• https://github.com/michaelrsweet/htmldoc/issues/414

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