The mirroring support (-M, --use-mirrors) in Python Pip before 1.5 uses insecure DNS querying and authenticity checks which allows attackers to perform man-in-the-middle attacks.
https://security-tracker.debian.org/tracker/CVE-2013-5123
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2013-5123
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-5123
http://www.openwall.com/lists/oss-security/2013/08/21/18
http://www.openwall.com/lists/oss-security/2013/08/21/17
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155291.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155248.html
Published: 2019-11-05
Updated: 2019-11-12
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 5.9
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: Medium
Base Score: 8.2
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.12863