From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue Jun 01 2010 - 15:19:07 CDT

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TITLE:
Fedora update for kernel

SECUNIA ADVISORY ID:
SA39991

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/39991/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=39991

RELEASE DATE:
2010-06-01

DISCUSS ADVISORY:
http://secunia.com/advisories/39991/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Criticality Level
 * Impact
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 * CVE Reference(s)

http://secunia.com/advisories/39991/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=39991

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
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http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Fedora has issued an update for the kernel. This fixes some
vulnerabilities, which can be exploited by malicious, local users to
disclose potentially sensitive information and potentially gain
escalated privileges.

1) 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.

2) The "btrfs_ioctl_clone()" function in fs/btrfs/ioctl.c does not
properly check a user's read access to the source file before cloning
the file, which can be exploited to e.g. disclose sensitive
information.

SOLUTION:
Apply updated packages using the yum utility ("yum update kernel").

PROVIDED AND/OR DISCOVERED BY:
Red Hat credits:
1) Toshiyuki Okajima
2) Dan Rosenberg

ORIGINAL ADVISORY:
FEDORA-2010-9183:
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/042224.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:
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