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.
References (13)
Core 13
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/38158
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-914-1
Vendor Advisory vendor-advisory
x_refsource_redhat
https://rhn.redhat.com/errata/RHSA-2010-0088.html
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=560887
Patch, Vendor Advisory vendor-advisory
x_refsource_redhat
https://rhn.redhat.com/errata/RHSA-2010-0095.html
Third Party Advisory vdb-entry
x_refsource_vupen
http://www.vupen.com/english/advisories/2010/0638
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/38922
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2010/02/02/4
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2010/dsa-1996
Third Party Advisory, VDB Entry vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11095
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2010/02/02/1
Mailing List mailing-list
x_refsource_mlist
http://www.mail-archive.com/kvm%40vger.kernel.org/msg28002.html
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/38492
Scores
EPSS
0.0272
EPSS Percentile
84.6%
Details
CWE
CWE-16
Status
published
Products (1)
linux/kernel
Published
Feb 12, 2010
Tracked Since
Feb 18, 2026