37286 : Linux Kernel Invalid LDT Segment Selector Local DoS
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Timeline

Disclosure Date
2007-07-15

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2007-3731" target="_blank">CVE</a>)</em> : The Linux kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (the xcs field) during ptrace single-step operations, which allows local users to cause a denial of service (NULL dereference and OOPS) via certain code that makes ptrace PTRACE_SETREGS and PTRACE_SINGLESTEP requests, related to the TRACE_IRQS_ON function, and possibly related to the arch_ptrace function.

Classification

Attack Type: Denial of Service
Impact: Loss of Availability
Disclosure: Vendor Verified

Products

Unknown or Incomplete

References

CVE ID: 2007-3731 (see also: NVD)
Bugtraq ID: 25801
Secunia Advisory ID: 26935 26955 26978 27322 29159
SCIP VulDB ID: 3335
Vendor Specific News/Changelog Entry: http://bugzilla.kernel.org/show_bug.cgi?id=8765
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=29eb51101c02df517ca64ec472d7501127ad1da8
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a10d9a71bafd3a283da240d2868e71346d2aef6f
https://bugzilla.redhat.com/show_bug.cgi?id=248324
Other Advisory URL: http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0094
http://www.ubuntu.com/usn/usn-518-1
http://www.us.debian.org/security/2007/dsa-1378
RedHat RHSA: RHSA-2007:0940

Tools & Filters

	26208 27565 28123

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 4.9
Source: nvd.nist.gov | Generated: 2007-09-18 | Disagree?

Blogs

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This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

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