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TITLE:
IBM AIX "TCP large send offload" Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA47865

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47865/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47865

RELEASE DATE:
2012-02-06

DISCUSS ADVISORY:
http://secunia.com/advisories/47865/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/47865/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=47865

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in AIX, which can be exploited by
malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the TCP stack when
the "TCP large send offload" option is enabled and can be exploited to
trigger a kernel panic via a specially crafted sequence of TCP
packets.

The vulnerability is reported in versions 5.3, 6.1, and 7.1.

SOLUTION:
Apply interim fixes or APARs when available (please see the vendor's
advisory for more information).

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

ORIGINAL ADVISORY:
IBM (IV13827, IV13751, IV13820, IV14209, IV14210, IV14211):
http://aix.software.ibm.com/aix/efixes/security/large_send_advisory.asc
http://xforce.iss.net/xforce/xfdb/72562

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
Secunia recommends that you verify all advisories you receive by
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Secunia NEVER sends attached files with advisories.
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use those supplied by the vendor.

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