lib/kadm5/kadmrpcxdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because xdrkadm5principalentrec does not validate the relationship between nkeydata and the keydata array count.
{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-admin-server"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-gss-samples"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-kdc"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-kdc-ldap"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-locales"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-multidev"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-otp"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-pkinit"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "krb5-user"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libgssapi-krb5-2"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libgssrpc4"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libk5crypto3"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkadm5clnt-mit9"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkadm5srv-mit8"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkadm5srv-mit9"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkdb5-7"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkrad-dev"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkrad0"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkrb5-3"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkrb5-dev"
},
{
"binary_version": "1.12+dfsg-2ubuntu5.4+esm4",
"binary_name": "libkrb5support0"
}
]
}
{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-admin-server"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-gss-samples"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-k5tls"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-kdc"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-kdc-ldap"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-locales"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-multidev"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-otp"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-pkinit"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "krb5-user"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libgssapi-krb5-2"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libgssrpc4"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libk5crypto3"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libkadm5clnt-mit9"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libkadm5srv-mit9"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libkdb5-8"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libkrad-dev"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libkrad0"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libkrb5-3"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libkrb5-dev"
},
{
"binary_version": "1.13.2+dfsg-5ubuntu2.2+esm4",
"binary_name": "libkrb5support0"
}
]
}
{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-admin-server"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-gss-samples"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-k5tls"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-kdc"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-kdc-ldap"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-kpropd"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-locales"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-multidev"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-otp"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-pkinit"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "krb5-user"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libgssapi-krb5-2"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libgssrpc4"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libk5crypto3"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libkadm5clnt-mit11"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libkadm5srv-mit11"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libkdb5-9"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libkrad-dev"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libkrad0"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libkrb5-3"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libkrb5-dev"
},
{
"binary_version": "1.16-2ubuntu0.4+esm1",
"binary_name": "libkrb5support0"
}
]
}
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-admin-server"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-gss-samples"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-k5tls"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-kdc"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-kdc-ldap"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-kpropd"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-locales"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-multidev"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-otp"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-pkinit"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "krb5-user"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libgssapi-krb5-2"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libgssrpc4"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libk5crypto3"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libkadm5clnt-mit11"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libkadm5srv-mit11"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libkdb5-9"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libkrad-dev"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libkrad0"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libkrb5-3"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libkrb5-dev"
},
{
"binary_version": "1.17-6ubuntu4.4",
"binary_name": "libkrb5support0"
}
]
}
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-admin-server"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-gss-samples"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-k5tls"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-kdc"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-kdc-ldap"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-kpropd"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-locales"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-multidev"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-otp"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-pkinit"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "krb5-user"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libgssapi-krb5-2"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libgssrpc4"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libk5crypto3"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libkadm5clnt-mit12"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libkadm5srv-mit12"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libkdb5-10"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libkrad-dev"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libkrad0"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libkrb5-3"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libkrb5-dev"
},
{
"binary_version": "1.19.2-2ubuntu0.3",
"binary_name": "libkrb5support0"
}
]
}