CVE-2017-9524

MEDIUM

Description

The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.

References

http://www.debian.org/security/2017/dsa-3925

http://www.openwall.com/lists/oss-security/2017/06/12/1

http://www.securityfocus.com/bid/99011

https://access.redhat.com/errata/RHSA-2017:1681

https://access.redhat.com/errata/RHSA-2017:1682

https://access.redhat.com/errata/RHSA-2017:2408

https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg06240.html

https://lists.gnu.org/archive/html/qemu-devel/2017-06/msg02321.html

Details

Source: MITRE

Published: 2017-07-06

Updated: 2018-01-05

Type: CWE-20

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: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH