Vulnerability in Python
CVE-2013-7440
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.019 (78.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Python — versions 3.0, 3.0.1, 3.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- seclists.org/oss-sec/2015/q2/483 (mailing-list)
- access.redhat.com/errata/RHSA-2016:1166 (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi
- hg.python.org/cpython/rev/10d0edadbcdd
- bugs.python.org/issue17997
- www.securityfocus.com/bid/74707 (vdb-entry)
- seclists.org/oss-sec/2015/q2/523 (mailing-list)
Frequently asked questions
- What is CVE-2013-7440?
- CVE-2013-7440 is a medium-severity vulnerability in Python, classified under CWE-19. CVSS score: 5.9/10. Published 2016-06-07.
- How severe is CVE-2013-7440?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2013-7440 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.