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TITLE:
Ubuntu update for linux and linux-ec2

SECUNIA ADVISORY ID:
SA42758

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42758/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42758

RELEASE DATE:
2011-01-12

DISCUSS ADVISORY:
http://secunia.com/advisories/42758/#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/42758/

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=42758

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:
Ubuntu has issued an update for linux and linux-ec2. This fixes some
weaknesses and vulnerabilities, which can be exploited by malicious,
local users to disclose system information and potentially sensitive
information, cause a DoS (Denial of Service), and gain escalated
privileges, and by malicious people to disclose potentially sensitive
information.

For more information:
SA40205
SA41002
SA41440
SA41462
SA41493
SA41693

1) An integer overflow within the "btrfs_ioctl_clone" function in
fs/btrfs/ioctl.c can be exploited to e.g. disclose sensitive
information.

2) Incorrect permission checks within the "btrfs_ioctl_clone"
function in fs/btrfs/ioctl.c can be exploited to overwrite
append-only files.

Note: CVE-2010-2537 and CVE-2010-2538 only affect Ubuntu 9.10.
CVE-2010-2962 does not affect Ubuntu 10.10.

SOLUTION:
Apply updated packages.

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

ORIGINAL ADVISORY:
USN-1041-1:
https://lists.ubuntu.com/archives/ubuntu-security-announce/2011-January/001224.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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