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{"affected_release": [{"advisory": "RHSA-2010:0088", "cpe": "cpe:/a:redhat:rhel_virtualization:5", "package": "kvm-0:83-105.el5_4.22", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2010-02-09T00:00:00Z"}, {"advisory": "RHSA-2010:0095", "cpe": "cpe:/o:redhat:enterprise_linux:5::hypervisor", "package": "rhev-hypervisor-0:5.4-2.1.8.el5_4rhev2_1", "product_name": "Red Hat Enterprise Virtualization for RHEL-5", "release_date": "2010-02-09T00:00:00Z"}], "bugzilla": {"description": "kvm: cat /dev/port in guest cause the host hang", "id": "560887", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=560887"}, "csaw": false, "cvss": {"cvss_base_score": "4.9", "cvss_scoring_vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "status": "verified"}, "details": ["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."], "name": "CVE-2010-0309", "public_date": "2010-01-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2010-0309\nhttps://nvd.nist.gov/vuln/detail/CVE-2010-0309"], "threat_severity": "Moderate"}