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Bug 342249 (CVE-2009-4895) - Kernel: tty_fasync race condition (CVE-2009-4895)
Summary: Kernel: tty_fasync race condition (CVE-2009-4895)
Status: RESOLVED FIXED
Alias: CVE-2009-4895
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
URL: https://bugzilla.redhat.com/show_bug....
Whiteboard: [linux < 2.6.32.6]
Keywords:
Depends on:
Blocks:
 
Reported: 2010-10-22 21:47 UTC by Stefan Behte (RETIRED)
Modified: 2013-09-15 19:57 UTC (History)
2 users (show)

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


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Description Stefan Behte (RETIRED) gentoo-dev Security 2010-10-22 21:47:28 UTC
CVE-2009-4895 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4895):
  Race condition in the tty_fasync function in drivers/char/tty_io.c in
  the Linux kernel before 2.6.32.6 allows local users to cause a denial
  of service (NULL pointer dereference and system crash) or possibly
  have unspecified other impact via unknown vectors, related to the
  put_tty_queue and __f_setown functions.  NOTE: the vulnerability was
  addressed in a different way in 2.6.32.9.
Comment 1 Stefan Behte (RETIRED) gentoo-dev Security 2010-10-22 23:16:08 UTC
CVE-2009-4895 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4895):
  Race condition in the tty_fasync function in drivers/char/tty_io.c in
  the Linux kernel before 2.6.32.6 allows local users to cause a denial
  of service (NULL pointer dereference and system crash) or possibly
  have unspecified other impact via unknown vectors, related to the
  put_tty_queue and __f_setown functions.  NOTE: the vulnerability was
  addressed in a different way in 2.6.32.9.