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CVE-2017-2630

5.5 · MEDIUM

A stack buffer overflow flaw was found in the Quick Emulator (QEMU) before 2.9 built with the Network Block Device (NBD) client support.

Published Jul 27, 2018CWE-121EPSS 2.65%

Overview

CVE-2017-2630 is a medium-severity vulnerability. It was published on July 27, 2018 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

A stack buffer overflow flaw was found in the Quick Emulator (QEMU) before 2.9 built with the Network Block Device (NBD) client support. The flaw could occur while processing server's response to a 'NBD_OPT_LIST' request. A malicious NBD server could use this issue to crash a remote NBD client resulting in DoS or potentially execute arbitrary code on client host with privileges of the QEMU process.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2017/02/15/2Refwww.securityfocus.com/bid/96265Refaccess.redhat.com/errata/RHSA-2017:2392Refbugzilla.redhat.com/show_bug.cgi?id=1422415Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2630GitHubgithub.com/qemu/qemu/commit/2563c9c6b8670400c48e562034b321a7cf3d9a85Reflists.gnu.org/archive/html/qemu-devel/2017-02/msg01246.htmlRefsecurity.gentoo.org/glsa/201704-01Refwww.openwall.com/lists/oss-security/2017/02/15/2Refwww.securityfocus.com/bid/96265

How CyberStrike helps

Frequently asked questions

What is CVE-2017-2630?

CVE-2017-2630 is a medium-severity vulnerability. It was published on July 27, 2018 and has a CVSS 3.0 base score of 5.5 (MEDIUM).

How severe is CVE-2017-2630?

This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-2630?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-2630?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-2630 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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