CVE-2011-0726

Linux Kernel < 2.6.39-rc1 - ASLR Bypass via /proc/#####/stat

Title source: llm

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.

References (8)

Core 8

Core References

Vendor Advisory x_refsource_confirm

http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.39/ChangeLog-2.6.39-rc1

Patch mailing-list x_refsource_mlist

http://www.spinics.net/lists/mm-commits/msg82726.html

Issue Tracking x_refsource_confirm

https://bugzilla.redhat.com/show_bug.cgi?id=684569

Patch vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/47791

Patch x_refsource_confirm

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5883f57ca0008ffc93e09cbb9847a1928e50c6f3

Vendor Advisory vendor-advisory x_refsource_redhat

http://rhn.redhat.com/errata/RHSA-2011-0833.html

Various Sources x_refsource_confirm

http://downloads.avaya.com/css/P8/documents/100145416

Patch mailing-list x_refsource_mlist

https://lkml.org/lkml/2011/3/11/380

Scores

EPSS 0.0034

EPSS Percentile 26.0%

Details

CWE

CWE-20

Status published

Products (13)

linux/linux_kernel 2.6.0

linux/linux_kernel 2.6.1 (4 CPE variants)

linux/linux_kernel 2.6.2 (4 CPE variants)

linux/linux_kernel 2.6.3 (5 CPE variants)

linux/linux_kernel 2.6.4 (4 CPE variants)

linux/linux_kernel 2.6.5 (4 CPE variants)

linux/linux_kernel 2.6.6 (4 CPE variants)

linux/linux_kernel 2.6.7 (4 CPE variants)

linux/linux_kernel 2.6.8 (5 CPE variants)

linux/linux_kernel 2.6.8.1

... and 3 more

Published Jul 18, 2011

Tracked Since Feb 18, 2026