QEMU CVE-2017-9524 Denial of Service Vulnerability

by CIRT Team

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.

Impact:  Attackers can exploit this issue to crash the QEMU instance, resulting in a denial-of-service condition.

Mitigation: Updates are available. Please check specific vendor advisory for more information.

Reference URL’s:

• http://seclists.org/oss-sec/2017/q2/454
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9524
• http://www.securityfocus.com/bid/99011/info
• https://access.redhat.com/security/cve/CVE-2017-9524

CIRT Team

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