CVE-2017-12809

QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.

• CWE-476

• http://www.debian.org/security/2017/dsa-3991Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/08/21/2Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/100451Third Party Advisory, VDB Entry
• https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.htmlPatch, Third Party Advisory
• http://www.debian.org/security/2017/dsa-3991Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/08/21/2Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/100451Third Party Advisory, VDB Entry
• https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01850.htmlPatch, Third Party Advisory

Published

Aug 23, 2017

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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