CVE-2023-39615

NameCVE-2023-39615
DescriptionXmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesELA-1227-1
Debian Bugs1051230

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxml2 (PTS)jessie, jessie (lts)2.9.1+dfsg1-5+deb8u17fixed
stretch (security)2.9.4+dfsg1-2.2+deb9u7vulnerable
stretch (lts), stretch2.9.4+dfsg1-2.2+deb9u11vulnerable
buster, buster (lts)2.9.4+dfsg1-7+deb10u9fixed
buster (security)2.9.4+dfsg1-7+deb10u6vulnerable
bullseye2.9.10+dfsg-6.7+deb11u4vulnerable
bullseye (security)2.9.10+dfsg-6.7+deb11u5vulnerable
bookworm2.9.14+dfsg-1.3~deb12u1vulnerable
sid, trixie2.12.7+dfsg+really2.9.14-0.2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2sourceexperimental2.12.3+dfsg-0exp1
libxml2sourcejessie2.9.1+dfsg1-5+deb8u17ELA-1227-1
libxml2sourcebuster2.9.4+dfsg1-7+deb10u9ELA-1227-1
libxml2source(unstable)(unfixed)1051230

Notes

[bookworm] - libxml2 <no-dsa> (Minor issue)
[bullseye] - libxml2 <no-dsa> (Minor issue)
[buster] - libxml2 <no-dsa> (Minor issue)
https://gitlab.gnome.org/GNOME/libxml2/-/issues/535
Fixed by: https://gitlab.gnome.org/GNOME/libxml2/-/commit/d0c3f01e110d54415611c5fa0040cdf4a56053f9 (v2.12.0)
Followup: https://gitlab.gnome.org/GNOME/libxml2/-/commit/235b15a590eecf97b09e87bdb7e4f8333e9de129 (v2.12.0)
[stretch] - libxml2 <no-dsa> (Minor issue)

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