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* [Bug stdio/17680] New: Unbounded alloca in vfprintf related to format specifiers (CVE-2012-3406)
@ 2014-12-04 18:37 fweimer at redhat dot com
  2014-12-04 22:20 ` [Bug stdio/17680] " jsm28 at gcc dot gnu.org
  2014-12-05  6:24 ` fweimer at redhat dot com
  0 siblings, 2 replies; 3+ messages in thread
From: fweimer at redhat dot com @ 2014-12-04 18:37 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=17680

            Bug ID: 17680
           Summary: Unbounded alloca in vfprintf related to format
                    specifiers (CVE-2012-3406)
           Product: glibc
           Version: 2.21
               URL: https://bugzilla.redhat.com/show_bug.cgi?id=826943
            Status: NEW
          Severity: normal
          Priority: P2
         Component: stdio
          Assignee: fweimer at redhat dot com
          Reporter: fweimer at redhat dot com
             Flags: security+

Created attachment 7997
  --> https://sourceware.org/bugzilla/attachment.cgi?id=7997&action=edit
glibc-rh841318.patch

A large number of format specifiers could result in a stack overflow in
vfprintf due to an unbounded alloca call.

I'm attaching the current Fedora version of the patch.  I will try to reduce
the size of the included test case before submitting it.

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* [Bug stdio/17680] Unbounded alloca in vfprintf related to format specifiers (CVE-2012-3406)
  2014-12-04 18:37 [Bug stdio/17680] New: Unbounded alloca in vfprintf related to format specifiers (CVE-2012-3406) fweimer at redhat dot com
@ 2014-12-04 22:20 ` jsm28 at gcc dot gnu.org
  2014-12-05  6:24 ` fweimer at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2014-12-04 22:20 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=17680

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
Same as bug 16617 (or at least, same CVE number); that bug has a smaller test.

*** This bug has been marked as a duplicate of bug 16617 ***

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* [Bug stdio/17680] Unbounded alloca in vfprintf related to format specifiers (CVE-2012-3406)
  2014-12-04 18:37 [Bug stdio/17680] New: Unbounded alloca in vfprintf related to format specifiers (CVE-2012-3406) fweimer at redhat dot com
  2014-12-04 22:20 ` [Bug stdio/17680] " jsm28 at gcc dot gnu.org
@ 2014-12-05  6:24 ` fweimer at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: fweimer at redhat dot com @ 2014-12-05  6:24 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=17680

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Alias|CVE-2012-3406               |

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end of thread, other threads:[~2014-12-05  6:24 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2014-12-04 18:37 [Bug stdio/17680] New: Unbounded alloca in vfprintf related to format specifiers (CVE-2012-3406) fweimer at redhat dot com
2014-12-04 22:20 ` [Bug stdio/17680] " jsm28 at gcc dot gnu.org
2014-12-05  6:24 ` fweimer at redhat dot com

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