CVE-2016-1981

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.

• CWE-835

• 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 List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/01/22/1Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/81549Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=1298570Issue Tracking
• https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg03454.htmlPatch, Vendor 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 List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/01/22/1Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/81549Third Party Advisory, VDB Entry
• https://bugzilla.redhat.com/show_bug.cgi?id=1298570Issue Tracking
• https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg03454.htmlPatch, Vendor Advisory
• https://security.gentoo.org/glsa/201604-01Third Party Advisory

Published

Dec 29, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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