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TITLE:
BlueCat Meridius Email Gateway libspf2 Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA32450

VERIFY ADVISORY:
http://secunia.com/advisories/32450/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

OPERATING SYSTEM:
BlueCat Meridius Email Gateway
http://secunia.com/advisories/product/20435/

DESCRIPTION:
A vulnerability has been reported in BlueCat Meridius Email Gateway,
which can potentially be exploited by malicious people to compromise
a vulnerable system.

The vulnerability is caused due to a boundary error within the
"SPF_dns_resolv_lookup()" function in Spf_dns_resolv.c when
processing DNS responses. This can be exploited to cause a heap-based
buffer overflow via a specially crafted DNS TXT record.

SOLUTION:
Reportedly, the vendor has provided a patch via the Meridius user
interface.

PROVIDED AND/OR DISCOVERED BY:
Reported in libspf2 by Dan Kaminsky.

ORIGINAL ADVISORY:
US-CERT:
http://www.kb.cert.org/vuls/id/183657
http://www.kb.cert.org/vuls/id/MAPG-7JLQN2

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