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.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "finch",
"binary_version": "1:2.10.9-0ubuntu3.2"
},
{
"binary_name": "finch-dev",
"binary_version": "1:2.10.9-0ubuntu3.2"
},
{
"binary_name": "libpurple-bin",
"binary_version": "1:2.10.9-0ubuntu3.2"
},
{
"binary_name": "libpurple-dev",
"binary_version": "1:2.10.9-0ubuntu3.2"
},
{
"binary_name": "libpurple0",
"binary_version": "1:2.10.9-0ubuntu3.2"
},
{
"binary_name": "pidgin",
"binary_version": "1:2.10.9-0ubuntu3.2"
},
{
"binary_name": "pidgin-data",
"binary_version": "1:2.10.9-0ubuntu3.2"
},
{
"binary_name": "pidgin-dev",
"binary_version": "1:2.10.9-0ubuntu3.2"
}
]
}