Secunia Security Advisory - A weakness has been reported in the Linux Kernel, which can be exploited by malicious, local users to disclose potentially sensitive information.
24db41355b3807817494cd996f8018e14d61ec3d7525bcbe0222685e1fb08c5f
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TITLE:
Linux Kernel OCFS2 Sparse Writes Information Disclosure Weakness
SECUNIA ADVISORY ID:
SA43966
VERIFY ADVISORY:
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http://secunia.com/advisories/43966/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43966
RELEASE DATE:
2011-03-31
DISCUSS ADVISORY:
http://secunia.com/advisories/43966/#comments
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http://secunia.com/advisories/43966/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=43966
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DESCRIPTION:
A weakness has been reported in the Linux Kernel, which can be
exploited by malicious, local users to disclose potentially sensitive
information.
The weakness is caused due to an error within the OCFS2 file system
when handling sparse writes with holes spanning across page
boundaries, which can be exploited to e.g. disclose the content of
previously manipulated files via sparse writes.
SOLUTION:
Fixed in 2.6.39-rc1.
PROVIDED AND/OR DISCOVERED BY:
Reported by an unknown SUSE costumer.
ORIGINAL ADVISORY:
GIT commit:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=272b62c1f0f6f742046e45b50b6fec98860208a0
Novell Bug #673037:
https://bugzilla.novell.com/show_bug.cgi?id=673037
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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