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Fencer Intel
critical 9.3

CVE-2013-2100 json

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

published 12y ago modified 4mo ago also GHSA-8823-xphr-qw9v , PYSEC-2014-115 , EUVD-2014-0085

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

The urlopen function in pym/portage/util/_urlopen.py in Gentoo Portage 2.1.12, when using HTTPS, does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and modify binary package lists via a crafted certificate.

Patch / fix

  • pypi portage 2.1.12.2

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Exploit prediction

1.57% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • openwall.com http://openwall.com/lists/oss-security/2013/05/15/5 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected packages

ecosystem package affected fixed in
pypi portage
<2.1.12.2
2.1.12.2

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.