PT-2014-5418 · Linux+5 · Linux Kernel+5

Publicado

2014-10-23

·

Atualizado

2023-02-13

·

CVE-2014-3611

CVSS v3.1

4.7

Média

VetorAV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel versions through 3.17.2
Description A race condition in the kvm migrate pit timer function in the KVM subsystem allows guest OS users to cause a denial of service (host OS crash) by leveraging incorrect PIT emulation. A local guest user with access to the PIT i/o ports could use this flaw to crash the host.
Recommendations For Linux kernel versions through 3.17.2, consider disabling the kvm migrate pit timer function as a temporary workaround until a patch is available. Restrict access to the PIT i/o ports to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Race Condition

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Enumeração de Fraquezas

CWE-362

Identificadores relacionados

ALT-PU-2014-2361
ALT-PU-2015-1794
CESA-2014_1724
CESA-2014_1843
CVE-2014-3611
DSA-3060-1
MGASA-2014-0474
MGASA-2014-0475
MGASA-2015-0075
MGASA-2015-0076
MGASA-2015-0077
MGASA-2015-0078
RHSA-2014:1724
RHSA-2014:1843
RHSA-2014_1724
RHSA-2014_1843
RHSA-2015:0126
RHSA-2015:0284
RHSA-2015:0869
RHSA-2015_0869
USN-2394-1
USN-2395-1
USN-2396-1
USN-2417-1
USN-2418-1
USN-2462-1
USN-2491-1

Produtos afetados

Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu