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CVE-2013-2037

16
FAUCET Score

CVE-2013-2037 describes a vulnerability in httplib2 versions 0.7.2, 0.8, and earlier, where the library fails to verify the server hostname against the X.509 certificate's Common Name or subjectAltName after an initial connection. This flaw allows man-in-the-middle attackers to spoof SSL servers using any valid certificate. The vulnerability has a CVSS score of 2.6 (low severity), indicating a network-based attack with high complexity, requiring no authentication, and potentially impacting integrity. There is no evidence of active exploitation, no known exploit code in Metasploit, Nuclei, or ExploitDB, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
10.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
12.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
13.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*
<= 0.7.2CPE matchmatch criteria
cpe:2.3:a:httplib2_project:httplib2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.6LOW

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 52nd percentile among its peer group of 1,505 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 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: httplib2Fixed in: 0.10.1

Vendor Advisories (2)

pipGHSA-q48q-77qv-cf9pmedium

httplib2 incorrectly checks SSL certificate

May 14, 2022
redhatCVE-2013-2037Moderate

python-httplib2: ssl cert incorrect error handling

May 1, 2013

References

bugs.debian.org / cgi-bin/bugreport.cgi
Issue TrackingMailing ListThird Party Advisory
code.google.com / p/httplib2/issues/detail
ExploitThird Party Advisory
bugs.launchpad.net / httplib2/+bug/1175272
ExploitPatch
seclists.org / oss-sec/2013/q2/257
Mailing ListThird Party Advisory
securityfocus.com / bid/52179
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1948-1
Third Party Advisory