Unscored severity · published Aug 18, 2013
CVE-2013-4238
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…
–
CVSS
5.3%
EPSS
No
On KEV
Description
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)5.3% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Opensuse · Opensuse
11.4; 12.2; 12.3 · source: NVD
PY
Python · Python
2.6.1; 2.6.2; 2.6.3; 2.6.4; 2.6.5; 2.6.6; +27 more · source: NVD
UL
Ubuntu Linux · Canonical
10.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-4238
CVE.org
https://www.cve.org/CVERecord?id=CVE-2013-4238
Patch
http://bugs.python.org/issue18709
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2013-09/msg00026.html
Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2013-09/msg00027.html
Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2013-09/msg00028.html
Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2013-09/msg00029.html
More from Ubuntu Linux
9.8
CVE-2020-11651
SaltStack Salt Authentication Bypass Vulnerability
9.8
CVE-2020-7247
OpenSMTPD Remote Code Execution Vulnerability
9.8
CVE-2019-11043
Underflow in PHP-FPM can lead to RCE
9.8
CVE-2019-16928
Exim Out-of-bounds Write Vulnerability
9.8
CVE-2019-10149
Exim Mail Transfer Agent (MTA) Improper Input Validation