CVE-2011-2495

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Summary

CVECVE-2011-2495
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-06-13 10:24:55 UTC
Updated2026-04-29 01:13:23 UTC
Descriptionfs/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.

Risk And Classification

Primary CVSS: v2.0 2.1 from [email protected]

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

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 2.6.39 All All All
Operating System Linux Linux Kernel 2.6.39 rc1 All All
Operating System Linux Linux Kernel 2.6.39 rc2 All All
Operating System Linux Linux Kernel 2.6.39 rc3 All All
Operating System Linux Linux Kernel 2.6.39 rc4 All All
Operating System Linux Linux Kernel 2.6.39 rc5 All All
Operating System Linux Linux Kernel 2.6.39 rc6 All All
Operating System Linux Linux Kernel 2.6.39 rc7 All All
Operating System Linux Linux Kernel 2.6.39.1 All All All
Operating System Linux Linux Kernel 2.6.39.2 All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - Re: CVE request: kernel: taskstats/procfs io infoleak af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
proc: restrict access to /proc/PID/io · torvalds/linux@1d1221f · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Exploit, Patch
404 Not Found af854a3a-2127-422b-91ae-364da2661108 ftp.osuosl.org
Bug 716825 – CVE-2011-2495 kernel: /proc/PID/io infoleak af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
access.redhat.com af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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