Vulnerability Description
The do_task_stat function in fs/proc/array.c in the Linux kernel before 2.6.39-rc1 does not perform an expected uid check, which makes it easier for local users to defeat the ASLR protection mechanism by reading the start_code and end_code fields in the /proc/#####/stat file for a process executing a PIE binary.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.6.38.8 |
Related Weaknesses (CWE)
References
- http://downloads.avaya.com/css/P8/documents/100145416
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://rhn.redhat.com/errata/RHSA-2011-0833.html
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.39/ChangeLog-2.6.39-rc1
- http://www.securityfocus.com/bid/47791Patch
- http://www.spinics.net/lists/mm-commits/msg82726.htmlPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=684569
- https://lkml.org/lkml/2011/3/11/380Patch
- http://downloads.avaya.com/css/P8/documents/100145416
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://rhn.redhat.com/errata/RHSA-2011-0833.html
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.39/ChangeLog-2.6.39-rc1
- http://www.securityfocus.com/bid/47791Patch
- http://www.spinics.net/lists/mm-commits/msg82726.htmlPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=684569
FAQ
What is CVE-2011-0726?
CVE-2011-0726 is a vulnerability with a CVSS score of 2.1 (LOW). The do_task_stat function in fs/proc/array.c in the Linux kernel before 2.6.39-rc1 does not perform an expected uid check, which makes it easier for local users to defeat the ASLR protection mechanism...
How severe is CVE-2011-0726?
CVE-2011-0726 has been rated LOW with a CVSS base score of 2.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-0726?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.