CVE-2011-2495

Severity

21%

Complexity

39%

Confidentiality

48%

fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password.

fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password.

CVSS 2.0 Base Score 2.1. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N).

Overview

First reported 12 years ago

2012-06-13 10:24:00

Last updated 11 years ago

2013-12-31 04:08:00

Affected Software

Linux Kernel 2.6.39

2.6.39

Linux Kernel 2.6.39 Release Candidate 1

2.6.39

Linux Kernel 2.6.39 Release Candidate 2

2.6.39

Linux Kernel 2.6.39 Release Candidate 3

2.6.39

Linux Kernel 2.6.39 Release Candidate 4

2.6.39

Linux Kernel 2.6.39 Release Candidate 5

2.6.39

Linux Kernel 2.6.39 release candidate 6

2.6.39

Linux Kernel 2.6.39 release candidate 7

2.6.39

Linux Kernel 2.6.39.1

2.6.39.1

Linux Kernel 2.6.39.2

2.6.39.2

Linux Kernel

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1d1221f375c94ef961ba8574ac4f85c8870ddd51

Patch

RHSA-2011:1212

[oss-security] 20110627 Re: CVE request: kernel: taskstats/procfs io infoleak

https://bugzilla.redhat.com/show_bug.cgi?id=716825

https://github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51

Exploit, Patch

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