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TITLE:
Red Hat update for kernel

SECUNIA ADVISORY ID:
SA40218

VERIFY ADVISORY:
Secunia.com
https://secunia.com/advisories/40218/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40218

RELEASE DATE:
2010-06-19

DISCUSS ADVISORY:
https://secunia.com/advisories/40218/#comments

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

https://secunia.com/advisories/40218/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=40218

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

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

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

1) A null pointer dereference error in the NFSv4 implementation can
potentially be exploited to cause a DoS or gain escalated privileges
on systems with a mounted NFSv4 share.

2) An error within the SCTP subsystem can be exploited to cause a
crash by sending a specially crafted packet.

3) A race condition within the "find_keyring_by_name()" function in
security/keys/keyring.c can be exploited to access freed memory and
e.g. cause a system panic or gain escalated privileges.

SOLUTION:
Updated packages are available via Red Hat Network.

Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

ORIGINAL ADVISORY:
RHSA-2010-0474:
https://rhn.redhat.com/errata/RHSA-2010-0474.html

OTHER REFERENCES:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

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


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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