CVE-2017-15118

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-121 CWE-787

Affected software

Vendor	Product	Versions
QEMU	Qemu	2.11

References

http://www.openwall.com/lists/oss-security/2017/11/28/8Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/101975Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:1104Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118Issue Tracking, Patch, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.htmlExploit, Patch, Third Party Advisory
https://usn.ubuntu.com/3575-1/Third Party Advisory
https://www.exploit-db.com/exploits/43194/Exploit, Third Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2017/11/28/8Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/101975Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:1104Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15118Issue Tracking, Patch, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05045.htmlExploit, Patch, Third Party Advisory
https://usn.ubuntu.com/3575-1/Third Party Advisory
https://www.exploit-db.com/exploits/43194/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Jul 27, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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