Vulnerability in Linux Kernel
CVE-2011-2495
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 2.1 (Low). Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.005 (39.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel — versions 2.6.39, 2.6.39.1, 2.6.39.2
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2011/06/27/1 (mailing-list)
- ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4
- github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51 (Exploit, Patch)
- rhn.redhat.com/errata/RHSA-2011-1212.html (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi
- git.kernel.org/