CVE-2013-2099: canonical ubuntu_linux Resource Management Errors
Vulnerability summary
CVE-2013-2099 is a medium (CVSS 4.3) Resource Management Errors vulnerability in canonical ubuntu_linux. EPSS estimates a 4.86% chance of exploitation in the next 30 days, higher than 92% of scored vulnerabilities.
Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Duplicates 1Timeline
- 09-10-2013PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
4.86%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.86% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Redhat28 products
- cloud-init< 0:0.7.5-1.el6
- glusterfs< 0:3.4.0.68rhs-1.el5 | < 0:3.4.0.68rhs-1.el6rhs | < 0:3.4.0.68rhs-1.el6
- glusterfs-api< 0:3.4.0.68rhs-1.el5 | < 0:3.4.0.68rhs-1.el6rhs | < 0:3.4.0.68rhs-1.el6
- glusterfs-api-devel< 0:3.4.0.68rhs-1.el5 | < 0:3.4.0.68rhs-1.el6rhs | < 0:3.4.0.68rhs-1.el6
- glusterfs-debuginfo< 0:3.4.0.68rhs-1.el5 | < 0:3.4.0.68rhs-1.el6rhs | < 0:3.4.0.68rhs-1.el6
Debian4 products
- bzr< 2.6.0~bzr6574-1
- linkchecker< 8.5-1
- python-tornado< 2.4.1-3
- python-urllib3< 1.6-2
Canonical1 product
- ubuntu_linuxEOL12.04 | 12.10 | 13.04
Python1 product
- pythonEOL3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.2.5 | 3.3.0 | 3.3.1 | 3.3.2
Ubuntu1 product
- w3afAll versions (No fix recorded)
5 vendors · 35 products