CVE-2016-2851

NameCVE-2016-2851
DescriptionInteger overflow in proto.c in libotr before 4.1.1 on 64-bit platforms allows remote attackers to cause a denial of service (memory corruption and application crash) or execute arbitrary code via a series of large OTR messages, which triggers a heap-based buffer overflow.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3512-1
NVD severityhigh (attack range: remote)
Debian Bugs817799

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libotr (PTS)wheezy, wheezy (security)3.2.1-1+deb7u2fixed
jessie (security), jessie4.1.0-2+deb8u1fixed
buster, sid, stretch4.1.1-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libotrsource(unstable)4.1.1-1high817799
libotrsourcejessie4.1.0-2+deb8u1highDSA-3512-1
libotrsourcewheezy3.2.1-1+deb7u2highDSA-3512-1

Notes

https://lists.cypherpunks.ca/pipermail/otr-announce/2016-March/000062.html
https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/

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