AI Score
Confidence
High
EPSS
Percentile
52.8%
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.
seclists.org/oss-sec/2015/q2/483
seclists.org/oss-sec/2015/q2/523
www.securityfocus.com/bid/74707
access.redhat.com/errata/RHSA-2016:1166
bugs.python.org/issue17997
bugzilla.redhat.com/show_bug.cgi?id=1224999
hg.python.org/cpython/rev/10d0edadbcdd