CVE-2021-23180

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 48%
VendorProductVersion
htmldoc_projecthtmldoc
𝑥
≤ 1.9.12
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
htmldoc
bullseye
1.9.11-4+deb11u3
fixed
bookworm
1.9.16-1
fixed
sid
1.9.18-3
fixed
trixie
1.9.18-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
htmldoc
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
Fixed 1.9.11-2ubuntu0.1
released
groovy
ignored
focal
Fixed 1.9.7-1ubuntu0.2
released
bionic
not-affected
xenial
needed
trusty
needed
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=1967041
https://github.com/michaelrsweet/htmldoc/commit/19c582fb32eac74b57e155cffbb529377a9e751a
https://github.com/michaelrsweet/htmldoc/issues/418
https://ubuntu.com/security/CVE-2021-23180
https://bugzilla.redhat.com/show_bug.cgi?id=1967041
https://github.com/michaelrsweet/htmldoc/commit/19c582fb32eac74b57e155cffbb529377a9e751a
https://github.com/michaelrsweet/htmldoc/issues/418
https://ubuntu.com/security/CVE-2021-23180