CVE-2021-23158

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.84% Top 30%
Third-Party Advisory redhat.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a htmldoc
Published at:
Updated at:

References

Link Tags
https://github.com/michaelrsweet/htmldoc/issues/414 issue tracking exploit third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1967018 issue tracking third party advisory
https://github.com/michaelrsweet/htmldoc/commit/369b2ea1fd0d0537ba707f20a2f047b6afd2fbdc third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-23158?
CVE-2021-23158 has been scored as a critical severity vulnerability.
How to fix CVE-2021-23158?
To fix CVE-2021-23158, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-23158 being actively exploited in the wild?
It is possible that CVE-2021-23158 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23158?
CVE-2021-23158 affects n/a htmldoc.
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