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Bug 214184 (CVE-2007-3731) - kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (CVE-2007-3731)
Summary: kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment sele...
Status: RESOLVED FIXED
Alias: CVE-2007-3731
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
URL: http://www.debian.org/security/2007/d...
Whiteboard: [linux < 2.6.22.19][genpatches < 2.6....
Keywords:
: 194075 (view as bug list)
Depends on:
Blocks:
 
Reported: 2008-03-21 23:26 UTC by unnamedrambler
Modified: 2013-09-05 02:57 UTC (History)
3 users (show)

See Also:
Package list:
Runtime testing required: ---

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Description unnamedrambler 2008-03-21 23:26:33 UTC 
+++ This bug was initially created as a clone of Bug #194075 +++

CVE-2007-3731:
  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.
Comment 1 unnamedrambler 2008-03-21 23:59:20 UTC 
*** Bug 194075 has been marked as a duplicate of this bug. ***