59654 : Linux Kernel fs/pipe.c Multiple Function Locking Error NULL Dereference Local Privilege Escalation
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
12	1006	over 3 years ago	6 months ago	10 times	90%

Timeline

Disclosure Date
2009-10-16

Days of Exposure
0 days

Description

Linux Kernel 2.6.x contains a flaw that may allow a local denial of service or privilege escalation. The issue is triggered within the "pipe_rdwr_open()", "pipe_write_open()", and "pipe_read_open()" functions in "fs/pipe.c". This can be exploited to cause a NULL pointer deference by performing certain pipe operations.

Classification

Location: Local Access Required
Attack Type: Denial of Service
Impact: Loss of Availability
Solution: Patch / RCS
Disclosure: Vendor Verified

Solution

Upgrade to version 2.6.32-rc6 or higher, as it has been reported that this has been fixed. Additionally, it is possible to temporarily work around the flaw by implementing the following workaround: http://bugzilla.kernel.org/attachment.cgi?id=23426

Products

Symantec Corporation	Symantec Messaging Gateway	9.5.1
		9.5

References

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 6.9
Source: nvd.nist.gov | Generated: 2009-11-04 | Disagree?

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