CVE-2016-6490

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the descriptor buffer.

• CWE-120

• http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1e7aed70144b4673fc26e73062064b6724795e5f
• http://www.openwall.com/lists/oss-security/2016/07/28/4Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/07/28/9Mailing List, Third Party Advisory
• https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg06246.htmlPatch, Third Party Advisory
• https://security.gentoo.org/glsa/201609-01Third Party Advisory
• http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1e7aed70144b4673fc26e73062064b6724795e5f
• http://www.openwall.com/lists/oss-security/2016/07/28/4Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/07/28/9Mailing List, Third Party Advisory
• https://lists.gnu.org/archive/html/qemu-devel/2016-07/msg06246.htmlPatch, Third Party Advisory
• https://security.gentoo.org/glsa/201609-01Third Party Advisory

Published

Dec 10, 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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