CVE-2017-15119 Information

Description

The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests resulting in DoS.

CVSS Vector

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

Reference

http://www.openwall.com/lists/oss-security/2017/11/28/9 http://www.securityfocus.com/bid/102011 https://access.redhat.com/errata/RHSA-2018:1104 https://access.redhat.com/errata/RHSA-2018:1113 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15119 https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05044.html https://usn.ubuntu.com/3575-1/ https://www.debian.org/security/2018/dsa-4213

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

8.6