CVE-2014-7840

Name: CVE-2014-7840
Creator: NVD / NIST
Published: 2014-12-12T15:59:08.073+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.12%

Last modified Jun 17, 2026

CVE-2014-7840 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.12% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.12%

89.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 2.1.3
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Eus	7.3
Redhat	Enterprise Linux Eus	7.4
Redhat	Enterprise Linux Eus	7.5
Redhat	Enterprise Linux Eus	7.6
Redhat	Enterprise Linux Eus	7.7
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.3
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Aus	7.7
Redhat	Enterprise Linux Workstation	7.0
Redhat	Virtualization	3.0

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=0be839a2701369f669532ea5884c15bead1c6e08
http://rhn.redhat.com/errata/RHSA-2015-0349.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0624.htmlThird Party Advisory
http://thread.gmane.org/gmane.comp.emulators.qemu/306117Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=1163075Issue Tracking, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/99194Third Party Advisory, VDB Entry
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=0be839a2701369f669532ea5884c15bead1c6e08
http://rhn.redhat.com/errata/RHSA-2015-0349.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-0624.htmlThird Party Advisory
http://thread.gmane.org/gmane.comp.emulators.qemu/306117Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=1163075Issue Tracking, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/99194Third Party Advisory, VDB Entry

Timeline

Published: Dec 12, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-7840?

How severe is CVE-2014-7840?

Severity scoring for CVE-2014-7840 is pending analysis. The EPSS model estimates a 4.12% probability of exploitation in the next 30 days.

How do I fix CVE-2014-7840?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-7840?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST