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TITLE:
Red Hat update for kernel

SECUNIA ADVISORY ID:
SA40218

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

RELEASE DATE:
2010-06-19

DISCUSS ADVISORY:
http://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)

http://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

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 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:
http://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:
http://secunia.com/products/corporate/EVM/

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

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

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

EXPLOIT:
Further details available in Customer Area:
http://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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