CVE-2013-7440: python Data Processing Errors
CVSS: 5.9v3.0MediumModified
AliasesSUSE-SU-2015:1298-1SUSE-SU-2015:1651-1DEBIAN-CVE-2013-7440
Published 07-06-2016Last modified 06-08-2024
Vulnerability summary
CVE-2013-7440 is a medium (CVSS 5.9) Data Processing Errors vulnerability in python. EPSS estimates a 1.88% chance of exploitation in the next 30 days, higher than 79% of scored vulnerabilities.
CVSS score
5.9/10
010
Medium · v3.0 (NVD)EPSS score
1.88%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 07-06-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.9Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NSourcesAll 2 agree
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.88%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
0.00 pp
From 1.88% on 18-09-2026
18-09-202618-10-2026
EPSS score1.88%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse9 products
- python-setuptools&distro=SUSE Cloud Compute Node for SUSE Linux Enterprise 12 5< 1.1.7-7.1
- python-setuptools&distro=SUSE Enterprise Storage 1.0< 1.1.7-7.1
- python-setuptools&distro=SUSE Linux Enterprise Desktop 11 SP3< 0.6c11-6.1
- python-setuptools&distro=SUSE Linux Enterprise Desktop 11 SP4< 0.6c11-6.1
- python-setuptools&distro=SUSE Linux Enterprise Module for Containers 12< 1.1.7-7.1
Debian1 product
- python2.7< 2.7.9-1
Python1 product
- pythonEOL≤ 2.7.8 | 3.0 | 3.0.1 | 3.1 | 3.1.1 | 3.1.2 | 3.1.3 | 3.1.4 | 3.1.5 | 3.1.2150 | 3.2 | 3.2:alpha | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.5 | 3.2.6 | 3.2.2150 | 3.3 | 3.3:beta2 | 3.3.0 | 3.3.1 | 3.3.1:rc1 | 3.3.2
3 vendors · 11 products
References
12 links- bugzilla.redhat.com/show_bug.cgi?id=1224999X Refsource CONFIRM
- hg.python.org/cpython/rev/10d0edadbcddX Refsource CONFIRM
- bugs.python.org/issue17997X Refsource CONFIRM
- bugzilla.suse.com/930189REPORT