CVE-2010-0309

Medium

Description

The pit_ioport_read function in the Programmable Interval Timer (PIT) emulation in i8254.c in KVM 83 does not properly use the pit_state data structure, which allows guest OS users to cause a denial of service (host OS crash or hang) by attempting to read the /dev/port file.

SeverityMedium

CVSS6.8

Exploit probability—

Product

Linux Kernel

PublishedFeb 12, 2010

First seenFeb 12, 2010

How to fix

Vendor advisories

rhn.redhat.com/errata/RHSA-2010-0088.html
rhn.redhat.com/errata/RHSA-2010-0095.html

Affected products

Product	Affected versions	Fixed in
linux kernel	No range specified	—

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