SB2016060706 - Data Handling in Python
Published: June 7, 2016 Updated: August 9, 2020
Security Bulletin ID
SB2016060706
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Data Handling (CVE-ID: CVE-2013-7440)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
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.
Remediation
Install update from vendor's website.
References
- http://seclists.org/oss-sec/2015/q2/483
- http://seclists.org/oss-sec/2015/q2/523
- http://www.securityfocus.com/bid/74707
- https://access.redhat.com/errata/RHSA-2016:1166
- https://bugs.python.org/issue17997
- https://bugzilla.redhat.com/show_bug.cgi?id=1224999
- https://hg.python.org/cpython/rev/10d0edadbcdd