Ubuntu Security Notice (C) 2005-2013 Canonical, Inc. / NASL script (C) 2006-2013 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related patches.
A flaw has been found in the host_aton() function, which can overflow
a buffer if it is presented with an illegal IPv6 address that has more
than 8 components. When supplying certain command line parameters, the
input was not checked, so that a local attacker could possibly exploit
the buffer overflow to run arbitrary code with the privileges of the
Exim mail server. (CAN-2005-0021)
Additionally, the BASE64 decoder in the SPA authentication handler did
not check the size of its output buffer. By sending an invalid BASE64
authentication string, a remote attacker could overflow the buffer,
which could possibly be exploited to run arbitrary code with the
privileges of the Exim mail server. (CAN-2005-0022).
Update the affected packages.
Risk factor :
High / CVSS Base Score : 7.2
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 20674 ()
CVE ID: CVE-2005-0021CVE-2005-0022
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