| Name | CVE-2013-7440 |
| Description | The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| python2.7 (PTS) | buster | 2.7.16-2+deb10u1 | fixed |
| buster (security) | 2.7.16-2+deb10u4 | fixed |
| bullseye | 2.7.18-8+deb11u1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[wheezy] - python3.2 <no-dsa> (Minor issue, too intrusive to backport)
[squeeze] - python3.1 <no-dsa> (Minor issue)
[wheezy] - python2.7 <no-dsa> (Minor issue, too intrusive to backport)
[wheezy] - python2.6 <no-dsa> (Minor issue, too intrusive to backport)
[squeeze] - python2.6 <no-dsa> (Minor issue)
[squeeze] - python2.5 <no-dsa> (Minor issue)
https://bugs.python.org/issue17997#msg194950
https://hg.python.org/cpython/rev/10d0edadbcdd
The CVE is only about refusing multiple wildcards. Backporting that part only is not so difficult.