Vulnerability Description
The xhci_ring_fetch function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit the number of link Transfer Request Blocks (TRB) to process.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.7.1 |
| Opensuse | Leap | 42.2 |
| Redhat | Openstack | 6.0 |
| Redhat | Virtualization | 4.0 |
| Redhat | Enterprise Linux | 7.0 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=05f43d44e4bc26611ce25fd7d726e483f
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/10/12Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/10/6Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/93469Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2408Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing ListThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg01265.htmlPatchThird Party Advisory
- https://security.gentoo.org/glsa/201611-11Third Party Advisory
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=05f43d44e4bc26611ce25fd7d726e483f
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/10/12Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/10/6Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/93469Third Party AdvisoryVDB Entry
FAQ
What is CVE-2016-8576?
CVE-2016-8576 is a vulnerability with a CVSS score of 6.0 (MEDIUM). The xhci_ring_fetch function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging fa...
How severe is CVE-2016-8576?
CVE-2016-8576 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-8576?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Opensuse Leap, Redhat Openstack, Redhat Virtualization, Redhat Enterprise Linux.