CVE-2013-2099

NameCVE-2013-2099
DescriptionAlgorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1107-1
Debian Bugs708530, 709066, 709067, 709068, 709069, 709070, 709071, 709486

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bzr (PTS)sid, trixie, bookworm, bullseye2.7.0+bzr6622+brzfixed
linkchecker (PTS)bullseye10.0.1-2fixed
bookworm10.2.1-1fixed
sid, trixie10.4.0-1fixed
python-tornado (PTS)bullseye6.1.0-1fixed
bookworm6.2.0-3fixed
sid, trixie6.4.1-3fixed
python-urllib3 (PTS)bullseye1.26.5-1~exp1fixed
bookworm1.26.12-1fixed
sid, trixie2.0.7-2fixed
python2.7 (PTS)bullseye2.7.18-8+deb11u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bzrsourcewheezy2.6.0~bzr6526-1+deb7u1DLA-1107-1
bzrsource(unstable)2.6.0~bzr6574-1low709068
linkcheckersource(unstable)8.5-1low709067
python-tornadosource(unstable)2.4.1-3low709069
python-urllib3source(unstable)1.6-2low709070
python2.5source(unstable)(not affected)
python2.6source(unstable)(not affected)
python2.7sourcewheezy(not affected)
python2.7source(unstable)2.7.5-5low709066
python3.1source(unstable)(not affected)
python3.2source(unstable)(unfixed)low708530
python3.3source(unstable)3.3.2-3low708530
u1dbsource(unstable)13.10-1low709486
w3afsource(unstable)(unfixed)low709071

Notes

[wheezy] - python2.7 <not-affected> (Backport was introduced in 2.7.3-11)
[wheezy] - linkchecker <no-dsa> (Minor issue)
[squeeze] - linkchecker <no-dsa> (Minor issue)
[wheezy] - python3.2 <no-dsa> (Minor issue)
- python2.6 <not-affected> (Introduced in Python 3.2)
- python2.5 <not-affected> (Introduced in Python 3.2)
- python3.1 <not-affected> (Introduced in Python 3.2)
[squeeze] - bzr <no-dsa> (Minor issue)
[wheezy] - python-urllib3 <no-dsa> (Minor issue)
[wheezy] - python-tornado <no-dsa> (Minor issue)
[squeeze] - python-tornado <no-dsa> (Minor issue)
[jessie] - w3af <no-dsa> (Minor issue)
[wheezy] - w3af <no-dsa> (Minor issue)
[squeeze] - w3af <no-dsa> (Minor issue)

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