Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.4.1 |
| Debian | Debian Linux | 7.0 |
| Fedoraproject | Fedora | 21 |
| Suse | Linux Enterprise Desktop | 12 |
| Suse | Linux Enterprise Server | 12 |
| Canonical | Ubuntu Linux | 12.04 |
| Arista | Eos | - |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168602.htThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169036.htThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169039.htThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169327.htThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169341.htThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167369.Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00019.htmlMailing ListThird Party Advisory
- http://www.debian.org/security/2015/dsa-3361Third Party Advisory
- http://www.debian.org/security/2015/dsa-3362Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/09/10/1Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/09/10/2Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/76691Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2745-1Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg02479.htmlMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
FAQ
What is CVE-2015-6855?
CVE-2015-6855 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 I...
How severe is CVE-2015-6855?
CVE-2015-6855 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-6855?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Debian Debian Linux, Fedoraproject Fedora, Suse Linux Enterprise Desktop, Suse Linux Enterprise Server.