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CVE-2013-2191

14
FAUCET Score

CVE-2013-2191 describes a vulnerability in python-bugzilla prior to version 0.9.0, where the software fails to validate X.509 certificates, making it susceptible to man-in-the-middle attacks. This flaw allows attackers to spoof Bugzilla servers using crafted certificates, impacting various Fedora and openSUSE distributions of python-bugzilla. The vulnerability has a CVSS score of 4.3, indicating a medium severity. It can be exploited remotely with medium attack complexity, potentially leading to unauthorized information modification (integrity impact) without requiring authentication. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. The CVE has received minimal community discussion and media coverage, suggesting a low level of public awareness or concern.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.8.0CPE matchmatch criteria
cpe:2.3:a:python_bugzilla_project:python-bugzilla:*:*:*:*:*:*:*:*
0.6.0CPE matchmatch criteria
cpe:2.3:a:python_bugzilla_project:python-bugzilla:0.6.0:*:*:*:*:*:*:*
0.6.1CPE matchmatch criteria
cpe:2.3:a:python_bugzilla_project:python-bugzilla:0.6.1:*:*:*:*:*:*:*
0.6.2CPE matchmatch criteria
cpe:2.3:a:python_bugzilla_project:python-bugzilla:0.6.2:*:*:*:*:*:*:*
0.7.0CPE matchmatch criteria
cpe:2.3:a:python_bugzilla_project:python-bugzilla:0.7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 13th percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: python-bugzillaFixed in: 0.9.0

Vendor Advisories (1)

pipGHSA-2q4h-27m7-rj67high

python-bugzilla has improper validation of X.509 certificates

May 14, 2022

References

lists.opensuse.org / opensuse-updates/2013-07/msg00025.html
lists.opensuse.org / opensuse-updates/2013-07/msg00026.html
bugzilla.redhat.com / show_bug.cgi
git.fedorahosted.org / cgit/python-bugzilla.git/commit
Patch
lists.fedorahosted.org / pipermail/python-bugzilla/2013-June/000104.html
openwall.com / lists/oss-security/2013/06/19/6