CVE-2017-2630

A stack buffer overflow flaw was found in the Quick Emulator (QEMU) before 2.9 built with the Network Block Device (NBD) client support. The flaw could occur while processing server's response to a 'NBD_OPT_LIST' request. A malicious NBD server could use this issue to crash a remote NBD client resulting in DoS or potentially execute arbitrary code on client host with privileges of the QEMU process.

• CWE-121
• CWE-119

• http://www.openwall.com/lists/oss-security/2017/02/15/2Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/96265Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1422415
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2630Issue Tracking, Patch, Third Party Advisory
• https://github.com/qemu/qemu/commit/2563c9c6b8670400c48e562034b321a7cf3d9a85
• https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg01246.htmlPatch, Third Party Advisory
• https://security.gentoo.org/glsa/201704-01Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/02/15/2Mailing List, Patch, Third Party Advisory
• http://www.securityfocus.com/bid/96265Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1422415
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2630Issue Tracking, Patch, Third Party Advisory
• https://github.com/qemu/qemu/commit/2563c9c6b8670400c48e562034b321a7cf3d9a85
• https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg01246.htmlPatch, Third Party Advisory
• https://security.gentoo.org/glsa/201704-01Third Party Advisory

Published

Jul 27, 2018

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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