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CVE-2016-9846

6.5 · MEDIUM

QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue.

Published Dec 29, 2016CWE-119EPSS 0.42%

Overview

CVE-2016-9846 is a medium-severity vulnerability. It was published on December 29, 2016 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.

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/2016/12/05/18Refwww.openwall.com/lists/oss-security/2016/12/05/23Refwww.securityfocus.com/bid/94765Reflists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.htmlRefsecurity.gentoo.org/glsa/201701-49Refwww.openwall.com/lists/oss-security/2016/12/05/18Refwww.openwall.com/lists/oss-security/2016/12/05/23Refwww.securityfocus.com/bid/94765Reflists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.htmlRefsecurity.gentoo.org/glsa/201701-49

How CyberStrike helps

Frequently asked questions

What is CVE-2016-9846?

CVE-2016-9846 is a medium-severity vulnerability. It was published on December 29, 2016 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2016-9846?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2016-9846?

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-2016-9846?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-9846 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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