CVE-2018-10839

Name: CVE-2018-10839
Creator: NVD / NIST
Published: 2018-10-16T14:29:01.197+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.17%

Last modified Jun 17, 2026

CVE-2018-10839 is a vulnerability of currently unknown severity. 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. EPSS estimates a 3.17% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

3.17%

86.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 3.0.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://access.redhat.com/errata/RHSA-2019:2892
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10839Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03273.htmlExploit, Mailing List, Third Party Advisory
https://usn.ubuntu.com/3826-1/Patch, Vendor Advisory
https://www.debian.org/security/2018/dsa-4338Vendor Advisory
https://www.openwall.com/lists/oss-security/2018/10/08/1Mailing List, Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2892
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10839Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03273.htmlExploit, Mailing List, Third Party Advisory
https://usn.ubuntu.com/3826-1/Patch, Vendor Advisory
https://www.debian.org/security/2018/dsa-4338Vendor Advisory
https://www.openwall.com/lists/oss-security/2018/10/08/1Mailing List, Third Party Advisory

Timeline

Published: Oct 16, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-10839?

How severe is CVE-2018-10839?

Severity scoring for CVE-2018-10839 is pending analysis. The EPSS model estimates a 3.17% probability of exploitation in the next 30 days.

How do I fix CVE-2018-10839?

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-2018-10839?

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

Scan your code now

Source: NVD / NIST