CVE-2013-2099

N/A
Published: October 9, 2013 at 02:44 PM UTC
Updated: June 16, 2026 at 11:52 PM UTC
2 products affected across 2 vendorsUbuntu LinuxPython

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
N/A
Exploit prediction
EPSS 5%

Description

Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (10)

Third Party Advisoryx_refsource_SECUNIAVendor Advisory
http://secunia.com/advisories/55107
Third Party Advisoryx_refsource_SECUNIAVendor Advisory
http://secunia.com/advisories/55116
Vendor Advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-1983-1
Vendor Advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-1984-1
Vendor Advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-1985-1

CVSS

Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-399

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card