CVE-2011-2495

Public Exploit

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.

Category

2.1
CVSS
Severity: Low
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2011/06/27/1 mailing list
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4
https://github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51 patch exploit
http://rhn.redhat.com/errata/RHSA-2011-1212.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=716825
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1d1221f375c94ef961ba8574ac4f85c8870ddd51

Frequently Asked Questions

What is the severity of CVE-2011-2495?
CVE-2011-2495 has been scored as a low severity vulnerability.
How to fix CVE-2011-2495?
To fix CVE-2011-2495, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-2495 being actively exploited in the wild?
It is possible that CVE-2011-2495 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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