Vulnerability Description
QEMU (aka Quick Emulator) built with the e1000 NIC emulation support is vulnerable to an infinite loop issue. It could occur while processing data via transmit or receive descriptors, provided the initial receive/transmit descriptor head (TDH/RDH) is set outside the allocated descriptor buffer. A privileged user inside guest could use this flaw to crash the QEMU instance resulting in DoS.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.5.1.1 |
| Debian | Debian Linux | 7.0 |
Related Weaknesses (CWE)
References
- http://rhn.redhat.com/errata/RHSA-2016-2585.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3469Third Party Advisory
- http://www.debian.org/security/2016/dsa-3470Third Party Advisory
- http://www.debian.org/security/2016/dsa-3471Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/19/10Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/22/1Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/81549Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1298570Issue Tracking
- https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg03454.htmlPatchVendor Advisory
- https://security.gentoo.org/glsa/201604-01Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2585.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3469Third Party Advisory
- http://www.debian.org/security/2016/dsa-3470Third Party Advisory
- http://www.debian.org/security/2016/dsa-3471Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/19/10Mailing ListThird Party Advisory
FAQ
What is CVE-2016-1981?
CVE-2016-1981 is a vulnerability with a CVSS score of 5.5 (MEDIUM). QEMU (aka Quick Emulator) built with the e1000 NIC emulation support is vulnerable to an infinite loop issue. It could occur while processing data via transmit or receive descriptors, provided the ini...
How severe is CVE-2016-1981?
CVE-2016-1981 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-1981?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Debian Debian Linux.