| Description: | Description:
The remote host is missing an update to krb5
announced via advisory MDVSA-2008:070.
A memory management flaw was found in the GSSAPI library used by
Kerberos that could result in an attempt to free already freed memory,
possibly leading to a crash or allowing the execution of arbitrary code
(CVE-2007-5971).
A flaw was discovered in how the Kerberos krb5kdc handled Kerberos v4
protocol packets. An unauthenticated remote attacker could use this
flaw to crash the krb5kdc daemon, disclose portions of its memory,
or possibly %execute arbitrary code using malformed or truncated
Kerberos v4 protocol requests (CVE-2008-0062, CVE-2008-0063).
This issue only affects krb5kdc when it has Kerberos v4 protocol
compatibility enabled, which is a compiled-in default in all
Kerberos versions that Mandriva Linux ships prior to Mandriva
Linux 2008.0. Kerberos v4 protocol support can be disabled by
adding v4_mode=none (without quotes) to the [kdcdefaults] section
of /etc/kerberos/krb5kdc/kdc.conf.
A flaw in the RPC library as used in Kerberos' kadmind was discovered
by Jeff Altman of Secure Endpoints. An unauthenticated remote attacker
could use this vulnerability to crash kadmind or possibly execute
arbitrary code in systems with certain resource limits configured
this does not affect the default resource limits used by Mandriva Linux
(CVE-2008-0947).
The updated packages have been patched to correct these issues.
Affected: 2007.0, Corporate 4.0
Solution:
To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
http://www.securityspace.com/smysecure/catid.html?in=MDVSA-2008:070
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2008-001.txt
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2008-002.txt
Risk factor : Critical
CVSS Score:
10.0
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