MEDIUM6.4
The (1) bundled GnuTLS SSL/TLS plugin and the (2) bundled OpenSSL SSL/TLS plugin in libpurple in Pidgin before 2.10.10 do not properly consider the Basic Constraints extension during verification of X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
CVSS 2.0MEDIUM 6.4
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:NReferences
- http://hg.pidgin.im/pidgin/main/rev/2e4475087f04
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00023.html
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00037.html
- http://pidgin.im/news/security/?id=86
- http://secunia.com/advisories/60741
- http://secunia.com/advisories/61968
- http://www.debian.org/security/2014/dsa-3055
- http://www.ubuntu.com/usn/USN-2390-1
- https://access.redhat.com/errata/RHSA-2017:1854
- http://hg.pidgin.im/pidgin/main/rev/2e4475087f04
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00023.html
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00037.html
- http://pidgin.im/news/security/?id=86
- http://secunia.com/advisories/60741
- http://secunia.com/advisories/61968
- http://www.debian.org/security/2014/dsa-3055
- http://www.ubuntu.com/usn/USN-2390-1
- https://access.redhat.com/errata/RHSA-2017:1854