| Package | Affected versions | Patched versions |
|---|---|---|
| openssl | = 0.9.8= 0.9.8a= 0.9.8b= 0.9.8c= 0.9.8d= 0.9.8e= 0.9.8f= 0.9.8g= 0.9.8h= 0.9.8i= 0.9.8j= 0.9.8k= 0.9.8l≤ 0.9.8m |
The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files cannot be opened, does not check a certain return value, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via SSL cipher negotiation, as demonstrated by a chroot installation of Dovecot or stunnel without Kerberos configuration files inside the chroot.
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