cURL and libcurl 7.1 before 7.36.0, when using the OpenSSL, axtls, qsossl or gskit libraries for TLS, recognize a wildcard IP address in the subject's Common Name (CN) field of an X.509 certificate, which might allow man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-0139
• http://advisories.mageia.org/MGASA-2015-0165.html
• http://curl.haxx.se/docs/adv_20140326B.html
• http://lists.opensuse.org/opensuse-updates/2014-04/msg00042.html
• http://secunia.com/advisories/57836
• http://secunia.com/advisories/57966
• http://secunia.com/advisories/57968
• http://secunia.com/advisories/58615
• http://secunia.com/advisories/59458
• http://www-01.ibm.com/support/docview.wss?uid=swg21675820
• http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095862
• http://www.debian.org/security/2014/dsa-2902
• http://www.getchef.com/blog/2014/04/09/chef-server-11-0-12-release/
• http://www.getchef.com/blog/2014/04/09/enterprise-chef-1-4-9-release/
• http://www.getchef.com/blog/2014/04/09/enterprise-chef-11-1-3-release/
• http://www.mandriva.com/security/advisories?name=MDVSA-2015:213
• http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
• http://www.ubuntu.com/usn/USN-2167-1