dotgsreq.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-admin-server"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-doc"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-gss-samples"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-kdc"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-kdc-ldap"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-locales"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-multidev"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-otp"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-pkinit"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "krb5-user"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libgssapi-krb5-2"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libgssrpc4"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libk5crypto3"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkadm5clnt-mit9"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkadm5srv-mit8"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkadm5srv-mit9"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkdb5-7"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkrad-dev"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkrad0"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkrb5-3"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkrb5-dbg"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkrb5-dev"
},
{
"binary_version": "1.12+dfsg-2ubuntu4",
"binary_name": "libkrb5support0"
}
]
}