CVE-2010-2963
Description
A vulnerability was discovered in the 32-bit compatibility code for the VIDIOCSMICROCODE IOCTL (Input/Output Control) in the Video4Linux implementation. It does not affect Red Hat Enterprise Linux 5, but as a preventive measure, this update removes the code. Red Hat would like to thank Kees Cook for reporting this vulnerability.
Statement
This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 3 and 4 as they did not include the upstream commit eb4eeccc that introduced the problem. It did not affect Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG as they did not provide support for the Stradis driver that uses the vulnerable compat code for VIDIOCSMICROCODE. As a preventive measure, we have removed the vulnerable code in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0839.html. We plan to remove the vulnerable code in a future kernel update in Red Hat Enterprise MRG.
Acknowledgements
Red Hat would like to thank Kees Cook for reporting this issue.
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