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TITLE:
Red Hat update for kernel

SECUNIA ADVISORY ID:
SA45253

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45253/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45253

RELEASE DATE:
2011-07-15

DISCUSS ADVISORY:
http://secunia.com/advisories/45253/#comments

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

http://secunia.com/advisories/45253/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=45253

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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Red Hat has issued an update for the kernel. This fixes multiple
weaknesses and vulnerabilities, which can be exploited by malicious,
local users to disclose certain system information, bypass certain
security restrictions, cause a DoS (Denial of Service), and to
potentially gain escalated privileges, by malicious, local users in a
guest virtual machine to cause a DoS, and by malicious people to cause
a DoS.

For more information:
SA42176
SA43358
SA43693
SA43806
SA44164
SA44248
SA44466
SA44754

1) A vulnerability related to VLAN GRO_DROP and the
"napi_reuse_skb()" function can be exploited to cause a DoS by
sending specially crafted packets.

2) A vulnerability in the Xen hypervisor implementation can be
exploited to crash a guest virtual machine.

Note: This vulnerability only affects Intel x86 processors with
enabled Intel VT-x extension.

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 Ryan Sweat.
2) Reported by the vendor.

ORIGINAL ADVISORY:
RHSA-2011:0927-01:
https://rhn.redhat.com/errata/RHSA-2011-0927.html

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:
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