25847 : Linux Kernel SMP /proc Race Condition Local DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
2	279	over 5 years ago	over 3 years ago	0 times	90%

Timeline

Disclosure Date
2006-05-26

Description

The Linux kernel contains a flaw that may allow a local denial of service on SMP hardware, including hyperthreading processors. The issue is triggered when a large number of processes is created and terminated, while at the same time attempting to access the process ID entry in the '/proc' pseudo file system. A race condition in the 'prune_dcache()' can then lead to mempory corruption and cause the kernel to crash, leading to a loss of availability for the platform.

Classification

Location: Local Access Required
Attack Type: Denial of Service, Race Condition
Impact: Loss of Availability
Exploit: Exploit Rumored

Solution

Currently, there are no known upgrades, patches, or workarounds available to correct this issue.

Products

Linux	Kernel	2.6.15
		2.6.16
		2.6.17

References

CVE ID: 2006-2629 (see also: NVD)
Secunia Advisory ID: 20349
SCIP VulDB ID: 2270
ISS X-Force ID: 26746
Mail List Post: http://marc.theaimsgroup.com/?l=linux-kernel&m=114860432801543&w=2

Credit

Tony Griffiths - tonygagile.tv -

CVSSv2 Score

CVSSv2 Base Score = 4.0
Source: nvd.nist.gov | Generated: 2006-05-30 | Disagree?

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