FreeBSD : qemu -- denial of service vulnerability in MSI-X support (3fb06284-b1b7-11e5-9728-002590263bf5)
medium Nessus Plugin ID 87690
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Synopsis
The remote FreeBSD host is missing one or more security-related updates.Description
Prasad J Pandit, Red Hat Product Security Team, reports :Qemu emulator built with the PCI MSI-X support is vulnerable to null pointer dereference issue. It occurs when the controller attempts to write to the pending bit array(PBA) memory region. Because the MSI-X MMIO support did not define the .write method.
A privileges used inside guest could use this flaw to crash the Qemu process resulting in DoS issue.
Solution
Update the affected packages.See Also
https://www.openwall.com/lists/oss-security/2015/12/14/2
http://www.nessus.org/u?001a4abd
Plugin Details
Severity: Medium
ID: 87690
File Name: freebsd_pkg_3fb06284b1b711e59728002590263bf5.nasl
Version: 2.8
Type: local
Family: FreeBSD Local Security Checks
Published: 1/4/2016
Updated: 1/4/2021
Dependencies: ssh_get_info.nasl
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Low
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS v3
Risk Factor: Medium
Base Score: 6
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Vulnerability Information
CPE: p-cpe:/a:freebsd:freebsd:qemu, p-cpe:/a:freebsd:freebsd:qemu-devel, p-cpe:/a:freebsd:freebsd:qemu-sbruno, p-cpe:/a:freebsd:freebsd:qemu-user-static, cpe:/o:freebsd:freebsd
Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info
Patch Publication Date: 1/3/2016
Vulnerability Publication Date: 6/26/2015
Reference Information
CVE: CVE-2015-7549