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CVE-2018-10839

6.5 · MEDIUM

Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue.

Published Oct 16, 2018CWE-121EPSS 3.08%

Overview

CVE-2018-10839 is a medium-severity vulnerability. It was published on October 16, 2018 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.

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

Refaccess.redhat.com/errata/RHSA-2019:2892Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10839Reflists.debian.org/debian-lts-announce/2018/11/msg00038.htmlReflists.gnu.org/archive/html/qemu-devel/2018-09/msg03273.htmlRefusn.ubuntu.com/3826-1/Refwww.debian.org/security/2018/dsa-4338Refwww.openwall.com/lists/oss-security/2018/10/08/1Refaccess.redhat.com/errata/RHSA-2019:2892Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10839Reflists.debian.org/debian-lts-announce/2018/11/msg00038.html

How CyberStrike helps

Frequently asked questions

What is CVE-2018-10839?

CVE-2018-10839 is a medium-severity vulnerability. It was published on October 16, 2018 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

How severe is CVE-2018-10839?

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-10839?

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-2018-10839?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-10839 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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