First published: Thu Sep 16 2010(Updated: )
Description of problem: A vulnerability in the 32-bit compatibility layer for 64-bit systems was reported. It is caused by insecure allocation of user space memory when translating system call inputs to 64-bit. A stack pointer underflow can occur when using the "compat_alloc_user_space" method with an arbitrary length input. Reference: <a href="http://sota.gen.nz/compat1/">http://sota.gen.nz/compat1/</a> Upstream commit: <a href="http://git.kernel.org/linus/c41d68a513c71e35a14f66d71782d27a79a81ea6">http://git.kernel.org/linus/c41d68a513c71e35a14f66d71782d27a79a81ea6</a> Acknowledgements: Red Hat would like to thank Ben Hawkes for reporting this issue.
Credit: secalert@redhat.com secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
debian/linux-2.6 | ||
Linux Linux kernel | =2.6.36-rc2 | |
Linux Linux kernel | =2.6.36-rc1 | |
Linux Linux kernel | =2.6.36-rc3 | |
Linux Linux kernel | <=2.6.35.4 | |
Linux Linux kernel | =2.6.36 | |
VMware ESX | =4.1 | |
VMware ESX | =4.0 | |
SUSE SUSE Linux Enterprise Server | =11-sp1 | |
SUSE SUSE Linux Enterprise Desktop | =11-sp1 |
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