PRIOn knowledge basePRION:CVE-2010-0309Design/Logic Flaw
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.
References
secunia.com/advisories/38492
secunia.com/advisories/38922
www.debian.org/security/2010/dsa-1996
www.mail-archive.com/kvm%40vger.kernel.org/msg28002.html
www.openwall.com/lists/oss-security/2010/02/02/1
www.openwall.com/lists/oss-security/2010/02/02/4
www.securityfocus.com/bid/38158
www.ubuntu.com/usn/USN-914-1
www.vupen.com/english/advisories/2010/0638
bugzilla.redhat.com/show_bug.cgi?id=560887
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11095
rhn.redhat.com/errata/RHSA-2010-0088.html
rhn.redhat.com/errata/RHSA-2010-0095.html
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