CVE-2014-7840

7.5 · HIGH

Published Dec 12, 2014 qemu CWE-20 EPSS 4.12% (90th pctl) AV:N/AC:L/Au:N/C:P/I:P/A:P

Overview

CVE-2014-7840 is a high-severity vulnerability affecting qemu qemu. It was published on December 12, 2014 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm data.

Remediation

Check the references section for vendor advisories and patches from qemu. Update qemu to the latest patched version. 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.

Affected Products

Vendor	Product	Versions	Status
qemu	qemu	0	Affected

References

Ref git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=0be839a2701369f669532ea5884c15bead1c6e08 Ref rhn.redhat.com/errata/RHSA-2015-0349.html Ref rhn.redhat.com/errata/RHSA-2015-0624.html Ref thread.gmane.org/gmane.comp.emulators.qemu/306117 Ref bugzilla.redhat.com/show_bug.cgi?id=1163075 Ref exchange.xforce.ibmcloud.com/vulnerabilities/99194 Ref git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=0be839a2701369f669532ea5884c15bead1c6e08 Ref rhn.redhat.com/errata/RHSA-2015-0349.html Ref rhn.redhat.com/errata/RHSA-2015-0624.html Ref thread.gmane.org/gmane.comp.emulators.qemu/306117

Frequently Asked Questions

What is CVE-2014-7840?

CVE-2014-7840 is a high-severity vulnerability affecting qemu qemu. It was published on December 12, 2014 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2014-7840?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2014-7840?

How can CyberStrike help with CVE-2014-7840?

CyberStrike's AI-powered security agents can automatically detect CVE-2014-7840 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

Autonomous Discovery

AI agents map your attack surface to find vulnerabilities like this one.

Continuous Pentesting

Automated penetration testing that runs continuously, not just quarterly.

Code Review

AI-driven PR review catches vulnerable dependencies before they ship.

HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.