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TITLE:
Wireshark Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA37175

VERIFY ADVISORY:
http://secunia.com/advisories/37175/

DESCRIPTION:
Some vulnerabilities have been reported in Wireshark, which can be
exploited by malicious people to cause a DoS (Denial of Service).

1) An alignment error within the "dissect_paltalk()" function in
epan/dissectors/packet-paltalk.c of the Paltalk dissector can be
exploited to cause a crash.

Note: Successful exploitation requires that Wireshark is running on
an alignment sensitive architecture.

The vulnerability is reported in versions 1.2.0 through 1.2.2.

2) A NULL pointer dereference error within the DCERPC/NT dissector
when can be exploited to cause a crash.

The vulnerability is reported in versions 0.10.10 through 1.2.2.

3) An off-by-one error within the "dissect_negprot_response()"
function in epan/dissectors/packet-smb.c of the SMB dissector can be
exploited to cause a crash.

The vulnerability is reported in versions 1.2.0 through 1.2.2.

4) An error within the RADIUS dissector can be exploited to cause a
crash.

The is vulnerability is reported in version 0.10.13 through 1.0.9
(previously reported in version 1.2.0 only).

SOLUTION:
Update to version 1.0.10 or 1.2.3.
http://www.wireshark.org/download.html

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
WNPA-SEC-2009-07:
http://www.wireshark.org/security/wnpa-sec-2009-07.html

WNPA-SEC-2009-08:
http://www.wireshark.org/security/wnpa-sec-2009-08.html

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About:
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vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


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Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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