CVE-2013-4073

medium

Description

The OpenSSL::SSL.verify_certificate_identity function in lib/openssl/ssl.rb in Ruby 1.8 before 1.8.7-p374, 1.9 before 1.9.3-p448, and 2.0 before 2.0.0-p247 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

References

http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html

http://lists.opensuse.org/opensuse-updates/2013-07/msg00042.html

http://lists.opensuse.org/opensuse-updates/2013-07/msg00044.html

http://rhn.redhat.com/errata/RHSA-2013-1090.html

http://rhn.redhat.com/errata/RHSA-2013-1103.html

http://rhn.redhat.com/errata/RHSA-2013-1137.html

https://bugzilla.redhat.com/show_bug.cgi?id=979251

http://support.apple.com/kb/HT6150

http://www.debian.org/security/2013/dsa-2738

http://www.debian.org/security/2013/dsa-2809

http://www.ubuntu.com/usn/USN-1902-1

Details

Source: Mitre, NVD

Published: 2013-08-18

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium