CVE-2019-19956

NameCVE-2019-19956
DescriptionxmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.
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-2048-1, DLA-2369-1
NVD severitymedium

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+deb9u3fixed
buster2.9.4+dfsg1-7+deb10u1fixed
bullseye, sid2.9.10+dfsg-6.3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxml2sourceexperimental2.9.10+dfsg-1
libxml2sourcejessie2.9.1+dfsg1-5+deb8u8DLA-2048-1
libxml2sourcestretch2.9.4+dfsg1-2.2+deb9u3DLA-2369-1
libxml2sourcebuster2.9.4+dfsg1-7+deb10u1
libxml2source(unstable)2.9.10+dfsg-2

Notes

https://gitlab.gnome.org/GNOME/libxml2/issues/82
https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549 (v2.9.10-rc1)

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