CVE-2013-2100

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-09-29 · updated 2026-06-16
Weakness: CWE-310

Description

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.

Affected products

gentoo Portage: 2.1.12

References

http://openwall.com/lists/oss-security/2013/05/15/5
http://openwall.com/lists/oss-security/2013/05/16/3
http://www.securityfocus.com/bid/59878
https://bugs.gentoo.org/show_bug.cgi?id=469888
https://exchange.xforce.ibmcloud.com/vulnerabilities/84315
https://security.gentoo.org/glsa/201507-16
http://openwall.com/lists/oss-security/2013/05/15/5
http://openwall.com/lists/oss-security/2013/05/16/3
http://www.securityfocus.com/bid/59878
https://bugs.gentoo.org/show_bug.cgi?id=469888
https://exchange.xforce.ibmcloud.com/vulnerabilities/84315
https://security.gentoo.org/glsa/201507-16

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