CVE-2012-4419

NameCVE-2012-4419
DescriptionThe compare_tor_addr_to_addr_policy function in or/policies.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.21-rc, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a zero-valued port field that is not properly handled during policy comparison.
SourceCVE (at NVD; LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-2548-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tor (PTS)wheezy (security), wheezy0.2.4.27-1fixed
jessie0.2.5.12-1fixed
stretch, sid0.2.7.6-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
torsource(unstable)0.2.3.22-rc-1medium
torsourcesqueeze0.2.2.39-1mediumDSA-2548-1

Notes

http://www.openwall.com/lists/oss-security/2012/09/12/5
https://gitweb.torproject.org/tor.git/blob/release-0.2.2:/ReleaseNotes
https://gitweb.torproject.org/tor.git/commitdiff/973c18bf0e84d14d8006a9ae97fde7f7fb97e404
https://gitweb.torproject.org/tor.git/commitdiff/62d96284f7e0f81c40d5df7e53dd7b4dfe7e56a5

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