CVE-2018-18438

Name: CVE-2018-18438
Creator: NVD / NIST
Published: 2018-10-19T22:29:02.287+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.44%

Last modified Jun 17, 2026

CVE-2018-18438 is a vulnerability of currently unknown severity. Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.

Metrics

EPSS Probability

0.44%

35.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Qemu	Qemu	All versions
Redhat	Enterprise Linux	6.0
Redhat	Enterprise Linux	7.0
Redhat	Openstack	8
Redhat	Openstack	9
Redhat	Openstack	10
Redhat	Openstack	12
Redhat	Openstack	13

References

http://www.openwall.com/lists/oss-security/2018/10/17/3Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/105953Third Party Advisory, VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02396.htmlMailing List, Patch, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02402.htmlMailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/10/17/3Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/105953Third Party Advisory, VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02396.htmlMailing List, Patch, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02402.htmlMailing List, Patch, Third Party Advisory

Timeline

Published: Oct 19, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-18438?

Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.

How severe is CVE-2018-18438?

Severity scoring for CVE-2018-18438 is pending analysis. The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2018-18438?

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-2018-18438?

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

Scan your code now

Source: NVD / NIST