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.

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-2303-1 linux-2.6 security update
Debian DSA Debian DSA DSA-2303-2 New linux-2.6 packages fix regression
Debian DSA Debian DSA DSA-2310-1 linux-2.6 security update
EUVD EUVD EUVD-2011-2482 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.
Ubuntu USN Ubuntu USN USN-1236-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1239-1 Linux kernel (EC2) vulnerabilities
Ubuntu USN Ubuntu USN USN-1240-1 Linux kernel (Marvell DOVE) vulnerabilities
Ubuntu USN Ubuntu USN USN-1241-1 Linux kernel (i.MX51) vulnerabilities
Ubuntu USN Ubuntu USN USN-1242-1 Linux kernel (Maverick backport) vulnerabilities
Ubuntu USN Ubuntu USN USN-1243-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1244-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1245-1 Linux kernel (Marvell DOVE) vulnerabilities
Ubuntu USN Ubuntu USN USN-1253-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1279-1 Linux (Natty backport) vulnerabilities
Ubuntu USN Ubuntu USN USN-1281-1 Linux (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1285-1 Linux kernel vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T23:00:34.104Z

Reserved: 2011-06-15T00:00:00.000Z

Link: CVE-2011-2495

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2012-06-13T10:24:55.827

Modified: 2025-04-11T00:51:21.963

Link: CVE-2011-2495

cve-icon Redhat

Severity : Low

Publid Date: 2011-06-21T00:00:00Z

Links: CVE-2011-2495 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses