Mandrake Linux Security Advisory : krb5 (MDKSA-2005:119)

This script is Copyright (C) 2005-2016 Tenable Network Security, Inc.

Synopsis :

The remote Mandrake Linux host is missing one or more security

Description :

A number of vulnerabilities have been corrected in this Kerberos
update :

The rcp protocol would allow a server to instruct a client to write to
arbitrary files outside of the current directory. The Kerberos-aware
rcp could be abused to copy files from a malicious server

Gael Delalleau discovered an information disclosure vulnerability in
the way some telnet clients handled messages from a server. This could
be abused by a malicious telnet server to collect information from the
environment of any victim connecting to the server using the Kerberos-
aware telnet client (CVE-2005-0488).

Daniel Wachdorf disovered that in error conditions that could occur in
response to correctly-formatted client requests, the Kerberos 5 KDC
may attempt to free uninitialized memory, which could cause the KDC to
crash resulting in a Denial of Service (CVE-2005-1174).

Daniel Wachdorf also discovered a single-byte heap overflow in the
krb5_unparse_name() function that could, if successfully exploited,
lead to a crash, resulting in a DoS. To trigger this flaw, an attacker
would need to have control of a Kerberos realm that shares a cross-
realm key with the target (CVE-2005-1175).

Finally, a double-free flaw was discovered in the krb5_recvauth()
routine which could be triggered by a remote unauthenticated attacker.
This issue could potentially be exploited to allow for the execution
of arbitrary code on a KDC. No exploit is currently known to exist

The updated packages have been patched to address this issue and
Mandriva urges all users to upgrade to these packages as quickly as

See also :

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5

Family: Mandriva Local Security Checks

Nessus Plugin ID: 19201 (mandrake_MDKSA-2005-119.nasl)

Bugtraq ID:

CVE ID: CVE-2004-0175

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