National Cyber Awareness System
Vulnerability Summary for CVE-2012-2373
Original release date:08/09/2012
Last revised:01/24/2013
Source:
US-CERT/NIST
Overview
The Linux kernel before 3.4.5 on the x86 platform, when Physical Address Extension (PAE) is enabled, does not properly use the Page Middle Directory (PMD), which allows local users to cause a denial of service (panic) via a crafted application that triggers a race condition.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.9
Exploitability Subscore:
1.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: https://github.com/torvalds/linux/commit/26c191788f18129af0eb32a358cdaea0c7479626
Type: Patch Information
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=822821
External Source: MLIST
Name: [oss-security] 20120518 Re: CVE Request -- kernel: mm: read_pmd_atomic: 32bit PAE pmd walk vs pmd_populate SMP race condition
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
External Source: UBUNTU
Name: USN-1529-1
External Source: REDHAT
Name: RHSA-2012:0743
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=26c191788f18129af0eb32a358cdaea0c7479626
