CVE-2018-17958

Name: CVE-2018-17958
Creator: NVD / NIST
Published: 2018-10-09T22:29:00.813+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 6.17%

Last modified Jun 17, 2026

CVE-2018-17958 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Qemu has a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used.. EPSS estimates a 6.17% chance of exploitation in the next 30 days.

Description

Qemu has a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

6.17%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 3.0.1
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
Redhat	Virtualization	4.0
Redhat	Virtualization Manager	4.3

References

http://www.openwall.com/lists/oss-security/2018/10/08/1Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/105556Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:2425Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2553Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00023.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03269.htmlMailing List, Patch, Third Party Advisory
https://seclists.org/bugtraq/2019/May/76Mailing List, Third Party Advisory
https://usn.ubuntu.com/3826-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4454Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/10/08/1Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/105556Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:2425Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2553Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00023.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03269.htmlMailing List, Patch, Third Party Advisory
https://seclists.org/bugtraq/2019/May/76Mailing List, Third Party Advisory
https://usn.ubuntu.com/3826-1/Third Party Advisory
https://www.debian.org/security/2019/dsa-4454Third Party Advisory

Timeline

Published: Oct 9, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-17958?

Qemu has a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used.

How severe is CVE-2018-17958?

CVE-2018-17958 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 6.17% probability of exploitation in the next 30 days.

How do I fix CVE-2018-17958?

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-2018-17958?

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

Scan your code now

Source: NVD / NIST