Bug 177500 - CVE-2006-0035 netlink DoS (ipf)
CVE-2006-0035 netlink DoS (ipf)
Status: CLOSED NOTABUG
Product: Red Hat Enterprise Linux 2.1
Classification: Red Hat
Component: kernel (Show other bugs)
2.1
ia64 Linux
medium Severity high
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Assigned To: Don Howard
Brian Brock
reported=20060109,public=2006010:2102...
: Security
Depends On:
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Reported: 2006-01-11 05:27 EST by Mark J. Cox (Product Security)
Modified: 2007-11-30 17:06 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2006-01-11 19:49:21 EST
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Description Mark J. Cox (Product Security) 2006-01-11 05:27:19 EST
NOTE: We have not verified if this issue affects RHEL2.1, see private reproducer
in #177496

+++ This bug was initially created as a clone of Bug #177496 +++

A netlink message with nlmsg_len set to 0 can cause an infinite loop holding the
netlink semaphore therefore allowing a local unprivileged DoS.

Here is the upstream fix for this issue:

http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ad8e4b75c8a7bed475d72ce09bf526718862196
Comment 1 Don Howard 2006-01-11 19:49:21 EST
This patch above does not appear to apply to any redhat trees.
I was unable to reproduce the report on derry.


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