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TITLE:
Red Hat update for kernel

SECUNIA ADVISORY ID:
SA46304

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46304/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46304

RELEASE DATE:
2011-10-17

DISCUSS ADVISORY:
http://secunia.com/advisories/46304/#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/46304/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=46304

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:
Red Hat has issued an update for the kernel. This fixes a weakness
and multiple vulnerabilities, which can be exploited by malicious,
local users to disclose potentially sensitive and certain system
information, cause a DoS (Denial of Service), and potentially gain
escalated privileges and by malicious people to cause a DoS.

For more information:
SA43576
SA44094
SA44248
SA44754
SA45533
SA45420

1) An error within the "x86_assign_hw_event()" function
(arch/x86/kernel/cpu/perf_event.c) when calculating the base can
falsely lead the NMI (Non-Maskable Interrupt) Watchdog to detect a
lockup and cause a kernel panic e.g. via the perf tool.

SOLUTION:
Updated packages are available via Red Hat Network.

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

PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits Arun Sharma.

ORIGINAL ADVISORY:
RHSA-2011:1350-01:
https://rhn.redhat.com/errata/RHSA-2011-1350.html

Red Hat Bug#719228:
https://bugzilla.redhat.com/show_bug.cgi?id=719228

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
clicking the link.
Secunia NEVER sends attached files with advisories.
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use those supplied by the vendor.

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