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Red Hat security update to kernel-rt

Red Hat security update to kernel-rt

Posted Jul 2, 2009 1:42 UTC (Thu) by spender (subscriber, #23067)
Parent article: Red Hat security update to kernel-rt

Yet another "denial of service":
* an off-by-two error was found in the set_selection() function of the
Linux kernel. This could allow a local, unprivileged user to cause a denial
of service when making a selection of characters in a UTF-8 console. Note:
physical console access is required to exploit this issue.
(CVE-2009-1046, Low)

And here's the one-shot local root exploit:
http://kernelbof.blogspot.com/2009/07/even-when-one-byte-...

Maybe these "open source" companies should be more "open" with their justification for exploitability of bugs. Labeling every exploitable bug as DoS-only is getting very tiresome and pathetic.

-Brad


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Red Hat security update to kernel-rt

Posted Jul 2, 2009 9:32 UTC (Thu) by nix (subscriber, #2304) [Link]

If you've got console access, don't you often have physical access to the
machine, and thus many easier ways of getting root?

(This might be concerning for machines with serial consoles, higher-end
servers with a BMC, and virtualized systems, for which this assumption is
not true. So its a damn good thing this bug was squashed.)

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