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CVE-2013-2100

24
FAUCET Score

CVE-2013-2100 describes a critical vulnerability in Gentoo Portage 2.1.12, specifically within the urlopen function, where HTTPS connections fail to verify X.509 certificates. This oversight allows man-in-the-middle attackers to spoof legitimate servers and manipulate binary package lists through crafted certificates. With a CVSS score of 9.3, this vulnerability is highly severe due to its network-based attack vector, medium complexity, and potential for complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.1.12CPE matchmatch criteria
cpe:2.3:a:gentoo:portage:2.1.12:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.56%
Probability of exploitation in next 30 days
EPSS Percentile
72.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0156 is in the 30th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: portageFixed in: 2.1.12.2

Vendor Advisories (1)

pipGHSA-8823-xphr-qw9vhigh

Gentoo Portage does not verify X.509 certificates from SSL servers

May 17, 2022

References

openwall.com / lists/oss-security/2013/05/15/5
Exploit
openwall.com / lists/oss-security/2013/05/16/3
bugs.gentoo.org / show_bug.cgi
Patch
exchange.xforce.ibmcloud.com / vulnerabilities/84315
security.gentoo.org / glsa/201507-16
securityfocus.com / bid/59878