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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.65% probability · 86th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-119
- Affected
- qemu/qemu
- Source
- secalert@redhat.com
EPSS 2.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.