CVE-2016-4472

NameCVE-2016-4472
DescriptionThe overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-483-1, DSA-3582-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
expat (PTS)wheezy2.1.0-1+deb7u2vulnerable
wheezy (security)2.1.0-1+deb7u5fixed
jessie (security), jessie2.1.0-6+deb8u4fixed
stretch (security), stretch2.2.0-2+deb9u1fixed
buster, sid2.2.3-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
expatsource(unstable)2.1.1-2medium
expatsourcejessie2.1.0-6+deb8u2mediumDSA-3582-1
expatsourcewheezy2.1.0-1+deb7u3mediumDLA-483-1

Notes

https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bde/tree/expat/lib/xmlparse.c?diff=a238d7ea7a715ef3850c4cbdd86aeda7077b6bbc

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