CVE-2013-4238
8.5 High
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.002 Low
EPSS
Percentile
56.8%
The ssl.match_hostname function in the SSL module in Python 2.6 through 3.4 does not properly handle a ‘\0’ character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
References
bugs.python.org/issue18709
lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
lists.opensuse.org/opensuse-updates/2013-09/msg00026.html
lists.opensuse.org/opensuse-updates/2013-09/msg00027.html
lists.opensuse.org/opensuse-updates/2013-09/msg00028.html
lists.opensuse.org/opensuse-updates/2013-09/msg00029.html
lists.opensuse.org/opensuse-updates/2013-09/msg00042.html
lists.opensuse.org/opensuse-updates/2013-09/msg00043.html
rhn.redhat.com/errata/RHSA-2013-1582.html
seclists.org/fulldisclosure/2014/Dec/23
www.debian.org/security/2014/dsa-2880
www.securityfocus.com/archive/1/534161/100/0/threaded
www.ubuntu.com/usn/USN-1982-1
www.vmware.com/security/advisories/VMSA-2014-0012.html
bugzilla.redhat.com/show_bug.cgi?id=996381
Related
8.5 High
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.002 Low
EPSS
Percentile
56.8%