CVE-2010-0309

kvm: cat /dev/port in guest cause the host hang

Published Feb 12, 2010 CVSS 2.0 · 6.8 Medium EPSS 2.8% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-1996-1 New Linux 2.6.26 packages fix several vulnerabilities
Debian DSA Debian DSA DSA-2010-1 New kvm packages fix several vulnerabilities
EUVD EUVD EUVD-2010-0340 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.
Ubuntu USN Ubuntu USN USN-914-1 Linux kernel vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 7, 2024, 12:45 AM
Reserved
Jan 12, 2010, 12:00 AM
Status
Modified
Published
Feb 12, 2010, 7:30 PM
Modified
Jun 16, 2026, 11:15 PM
Severity
Moderate
Public date
Jan 7, 2010, 12:00 AM