Bug 140711 - CAN-2004-1068 Missing serialisation in unix_dgram_recvmsg
CAN-2004-1068 Missing serialisation in unix_dgram_recvmsg
Product: Red Hat Enterprise Linux 2.1
Classification: Red Hat
Component: kernel (Show other bugs)
i386 Linux
medium Severity high
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Assigned To: Jim Paradis
Brian Brock
: Security
Depends On:
  Show dependency treegraph
Reported: 2004-11-24 08:09 EST by Mark J. Cox
Modified: 2013-08-05 21:10 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2004-12-13 15:06:37 EST
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2004:505 normal SHIPPED_LIVE Important: Updated kernel packages fix security vulnerability 2004-12-13 00:00:00 EST

  None (edit)
Description Mark J. Cox 2004-11-24 08:09:38 EST
According to isec.pl on Nov19:
        "There is a subtle race condition finally permitting a
        non-root user to increment (up to 256 times) any arbitrary
        location(s) in kernel space.  The condition is not easy to
        exploit since an attacker must trick kmalloc() to sleep on
        allocation of a special chunk of memory and then convince the
        scheduler to execute another thread. But it is feasible."

Therefore fixed in 2.4.28
Therefore will be fixed in 2.6.10

CVE name applied for
Comment 2 John Flanagan 2004-12-13 15:06:38 EST
An errata has been issued which should help the problem 
described in this bug report. This report is therefore being 
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, 
please follow the link below. You may reopen this bug report 
if the solution does not work for you.


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