CVE-2015-6855
HIGH severity · CVSS 7.5 · CWE-369
7.5CVSS HIGH
Summary
hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (3)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168602.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169327.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169341.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.htmlAdvisory
- http://www.debian.org/security/2015/dsa-3361Advisory