CVE-2021-3517

NameCVE-2021-3517
Descriptionheap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2653-1
Debian Bugs987738

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml2 (PTS)stretch2.9.4+dfsg1-2.2+deb9u2vulnerable
stretch (security)2.9.4+dfsg1-2.2+deb9u4fixed
buster2.9.4+dfsg1-7+deb10u1vulnerable
bullseye, sid2.9.10+dfsg-6.6fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2sourcestretch2.9.4+dfsg1-2.2+deb9u4DLA-2653-1
libxml2source(unstable)2.9.10+dfsg-6.6987738

Notes

[buster] - libxml2 <no-dsa> (Minor issue)
https://gitlab.gnome.org/GNOME/libxml2/-/issues/235
https://gitlab.gnome.org/GNOME/libxml2/-/commit/bf22713507fe1fc3a2c4b525cf0a88c2dc87a3a2

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