medium4.0
CVE-2013-6422
The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital signature verification (CURLOPT_SSL_VERIFYPEER), also disables the CURLOPT_SSL_VERI…
Impact
The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital signature verification (CURLOPT_SSL_VERIFYPEER), also disables the CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it easier for remote attackers to spoof servers and conduct man-in-the-middle (MITM) attacks.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Debian | Debian Linux | Version 7.0 |
| Canonical | Ubuntu Linux | Versions 12.04, 12.10, 13.04, 13.10 |
| Haxx | Libcurl | Versions 7.21.4, 7.21.5, 7.21.6, 7.21.7, 7.22.0, 7.23.0 |
Weakness classification
References
- NVD record
- CVE.org record
- http://curl.haxx.se/docs/adv_20131217.html
- http://www.debian.org/security/2013/dsa-2824
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://www.ubuntu.com/usn/USN-2058-1
- https://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04463322
- http://curl.haxx.se/docs/adv_20131217.html
- http://www.debian.org/security/2013/dsa-2824
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://www.ubuntu.com/usn/USN-2058-1
- https://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04463322