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Last updated: 9/23/2014 6:20:27 PM

CVE Publication rate: 32.9

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Vulnerability Summary for CVE-2014-3601

Original release date: 08/31/2014
Last revised: 09/13/2014
Source: US-CERT/NIST

Overview

The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:A/AC:H/Au:S/C:N/I:N/A:C) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 2.5
CVSS Version 2 Metrics:
Access Vector: Local network exploitable
Access Complexity: High
Authentication: Required to exploit
Impact Type: Allows disruption of service

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External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=1131951
External Source: CONFIRM
Name: https://github.com/torvalds/linux/commit/350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7
Type: Patch Information; Exploit
External Source: XF
Name: linux-kernel-cve20143601-dos(95689)
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7
Type: Patch Information; Exploit

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