Double Free in Htmldoc Project
CVE-2021-23158
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.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Htmldoc Project — versions 1.9.12
- Htmldoc — versions Affects v1.9.12 and before.
Weakness classification (CWE)
References
- github.com/michaelrsweet/htmldoc/issues/414 (Exploit, Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/michaelrsweet/htmldoc/commit/369b2ea1fd0d0537ba707f20a2f047b6afd2fbdc (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-23158?
- CVE-2021-23158 is a critical-severity vulnerability in Htmldoc Project, classified under Double Free. CVSS score: 9.8/10. Published 2022-03-16.
- How severe is CVE-2021-23158?
- Critical severity. CVSS v3 base score is 9.8 out of 10.