CVE-2017-15119

MEDIUM

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.

References

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

Details

Source: MITRE

Published: 2018-07-27

Updated: 2018-09-24

Type: CWE-400

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 8.6

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

Impact Score: 4

Exploitability Score: 3.9

Severity: HIGH