Vulnerability Details : 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.
Products affected by CVE-2011-2495
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.39.2:*:*:*:*:*:*:*
Threat overview for CVE-2011-2495
Top countries where our scanners detected CVE-2011-2495
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2011-2495 9,187
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2011-2495!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2011-2495
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-2495
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST |
CWE ids for CVE-2011-2495
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-2495
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http://rhn.redhat.com/errata/RHSA-2011-1212.html
RHSA-2011:1212 - Security Advisory - Red Hat Customer Portal
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http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4
404 Not Found
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http://www.openwall.com/lists/oss-security/2011/06/27/1
oss-security - Re: CVE request: kernel: taskstats/procfs io infoleak
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https://github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51
proc: restrict access to /proc/PID/io · torvalds/linux@1d1221f · GitHubExploit;Patch
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https://bugzilla.redhat.com/show_bug.cgi?id=716825
716825 – (CVE-2011-2495) CVE-2011-2495 kernel: /proc/PID/io infoleak
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1d1221f375c94ef961ba8574ac4f85c8870ddd51
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