QEMU (aka Quick Emulator) built with the TPR optimization for...
Vulnerability Description
QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, 'current_cpu' remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.openwall.com/lists/oss-security/2016/01/16/1
- https://security.gentoo.org/glsa/201604-01
- http://www.openwall.com/lists/oss-security/2016/01/16/6
- http://www.debian.org/security/2016/dsa-3469
- http://www.debian.org/security/2016/dsa-3470
- http://www.debian.org/security/2016/dsa-3471
- https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html
- http://www.securityfocus.com/bid/81058
- https://bugzilla.redhat.com/show_bug.cgi?id=1283934
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CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.