CVE-2017-9524 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5