CVE-2011-2495

LOW

Description

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.

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

http://rhn.redhat.com/errata/RHSA-2011-1212.html

http://www.openwall.com/lists/oss-security/2011/06/27/1

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

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

Details

Source: MITRE

Published: 2012-06-13

Updated: 2013-12-31

Type: CWE-264

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW