National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2012-0056 Detail

Current Description

The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.

Source:  MITRE
Description Last Modified:  01/27/2012
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 6.9 MEDIUM
Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.4


Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://blog.zx2c4.com/749
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=e268337dfe26dfc7efd422a804dbb27977a3cccc
http://ubuntu.com/usn/usn-1336-1
http://www.kb.cert.org/vuls/id/470151
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
http://www.openwall.com/lists/oss-security/2012/01/18/1
http://www.openwall.com/lists/oss-security/2012/01/18/2
http://www.openwall.com/lists/oss-security/2012/01/19/4
http://www.openwall.com/lists/oss-security/2012/01/22/4
http://www.redhat.com/support/errata/RHSA-2012-0052.html
http://www.redhat.com/support/errata/RHSA-2012-0061.html
http://www.securityfocus.com/bid/51625
https://bugzilla.redhat.com/show_bug.cgi?id=782642

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:2.6.39:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2012-0056
NVD Published Date:
01/27/2012
NVD Last Modified:
01/17/2018