Read the docs
TI-2013-06092 Aliases CVE-2013-7440GHSA-v6fx-m8cj-52v3

The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3…

Priority LOW 30CWE-19Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 10 fixed, 8 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.01876 79th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 10 fixed, 8 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 26

CPEVersionsRoleVendor
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*up to 2.7.8Vulnerablepython-pillow
cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*3.0Vulnerablepython-pillow
cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*3.0.1Vulnerablepython-pillow
cpe:2.3:a:python:python:3.1:*:*:*:*:*:*:*3.1Vulnerablepython-pillow
cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*3.1.1Vulnerablepython-pillow
cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*3.1.2Vulnerablepython-pillow
cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*3.1.3Vulnerablepython-pillow
cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:*3.1.4Vulnerablepython-pillow
cpe:2.3:a:python:python:3.1.5:*:*:*:*:*:*:*3.1.5Vulnerablepython-pillow
cpe:2.3:a:python:python:3.1.2150:*:*:*:*:*:x64:*3.1.2150Vulnerablepython-pillow
  • cpe:2.3:a:python:python:*:*:*:*:*:*:*:* Versions up to 2.7.8 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:* Versions 3.0.1 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:* Versions 3.1.1 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:* Versions 3.1.2 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:* Versions 3.1.3 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.1.4:*:*:*:*:*:*:* Versions 3.1.4 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.1.5:*:*:*:*:*:*:* Versions 3.1.5 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.1.2150:*:*:*:*:*:x64:* Versions 3.1.2150 Vulnerable ·python-pillow
Show 16 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:python:python:3.2:*:*:*:*:*:*:*3.2Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2:alpha:*:*:*:*:*:*3.2 alphaVulnerablepython-pillow
cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:*3.2.0Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:*3.2.1Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:*3.2.2Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:*3.2.3Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:*3.2.4Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:*3.2.5Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2.6:*:*:*:*:*:*:*3.2.6Vulnerablepython-pillow
cpe:2.3:a:python:python:3.2.2150:*:*:*:*:*:*:*3.2.2150Vulnerablepython-pillow
cpe:2.3:a:python:python:3.3:*:*:*:*:*:*:*3.3Vulnerablepython-pillow
cpe:2.3:a:python:python:3.3:beta2:*:*:*:*:*:*3.3 beta2Vulnerablepython-pillow
cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:*3.3.0Vulnerablepython-pillow
cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:*3.3.1Vulnerablepython-pillow
cpe:2.3:a:python:python:3.3.1:rc1:*:*:*:*:*:*3.3.1 rc1Vulnerablepython-pillow
cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:*3.3.2Vulnerablepython-pillow
  • cpe:2.3:a:python:python:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2:alpha:*:*:*:*:*:* Versions 3.2 alpha Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2.0:*:*:*:*:*:*:* Versions 3.2.0 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:* Versions 3.2.1 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:* Versions 3.2.2 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:* Versions 3.2.3 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:* Versions 3.2.4 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:* Versions 3.2.5 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2.6:*:*:*:*:*:*:* Versions 3.2.6 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.2.2150:*:*:*:*:*:*:* Versions 3.2.2150 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.3:beta2:*:*:*:*:*:* Versions 3.3 beta2 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:* Versions 3.3.0 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:* Versions 3.3.1 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.3.1:rc1:*:*:*:*:*:* Versions 3.3.1 rc1 Vulnerable ·python-pillow
  • cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:* Versions 3.3.2 Vulnerable ·python-pillow

Remediation

Red Hat 1 advisory

  • RHSA-2016:1166 Released 2016-05-31 · Red Hat rating Moderate
    python27 security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) python27-1.1-25.el6, python27-PyYAML-3.10-14.el6, python27-numpy-1:1.7.1-10.el6 +18
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) python27-1.1-25.el7, python27-PyYAML-3.10-14.el7, python27-numpy-1:1.7.1-10.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) python27-1.1-25.el6, python27-PyYAML-3.10-14.el6, python27-numpy-1:1.7.1-10.el6 +18
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) python27-1.1-25.el6, python27-PyYAML-3.10-14.el6, python27-numpy-1:1.7.1-10.el6 +18
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) python27-1.1-25.el7, python27-PyYAML-3.10-14.el7, python27-numpy-1:1.7.1-10.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) python27-1.1-25.el7, python27-PyYAML-3.10-14.el7, python27-numpy-1:1.7.1-10.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) python27-1.1-25.el6, python27-PyYAML-3.10-14.el6, python27-numpy-1:1.7.1-10.el6 +18
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) python27-1.1-25.el7, python27-PyYAML-3.10-14.el7, python27-numpy-1:1.7.1-10.el7 +17

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)AffectedNo fix yet: Fix deferred
Red Hat OpenShift Enterprise 2AffectedNo fix planned: Will not fix
Red Hat OpenStack Platform 4AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Storage 2AffectedNo fix planned: Will not fix
Red Hat Satellite 6.0Fixed—
Red Hat Satellite Capsule 6.0Fixed—
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:1166
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:1166
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6)Fixed RHSA-2016:1166
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2016:1166
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1)Fixed RHSA-2016:1166
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2)Fixed RHSA-2016:1166
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:1166
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:1166
Not affected: 14 products
  • Red Hat Ceph Storage 1.1
  • Red Hat Ceph Storage 1.2
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
  • Red Hat Enterprise MRG 2
  • Red Hat Satellite 6
  • Red Hat Satellite 6.0
  • Red Hat Satellite 6.0 - Optional
  • Red Hat Satellite Capsule 6.0
  • Red Hat Software Collections
  • Red Hat Storage 3
  • Red Hat Subscription Asset Manager

Timeline

  1. 2026-10-02 Threatist record created from CVE-2013-7440
  2. 2026-10-03 Alias added: GHSA-v6fx-m8cj-52v3

References

Advisory 1

Other 5

  • TI-2016-01993 The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other… CVSS 3.1HIGH 7.5
  • TI-2022-24108 An XML External Entity (XXE) issue was discovered in Python through 3.9.1. CVSS 3.1CRITICAL 9.8
  • TI-2022-17508 The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and… CVSS 3.1CRITICAL 9.8
  • TI-2021-02254 Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c… CVSS 3.1CRITICAL 9.8
  • TI-2007-04413 Directory traversal vulnerability in the (1) extract and (2) extractall functions in the… CVSS 3.1CRITICAL 9.8
  • TI-2014-00217 OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly… CVSS 3.1HIGH 7.4
See all 139 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences