high
8.2
CWE
119 787
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2018-11806: Qemu Slirp Networking Heap-based Buffer Overflow Privilege Escalation Vulnerability

First published: Tue Jun 05 2018(Updated: )

A heap buffer overflow issue was found in the way Slirp networking back-end in QEMU processes fragmented packets. It could occur while reassembling the fragmented datagrams of an incoming packet. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS OR potentially leverage it to execute arbitrary code on the host with privileges of the QEMU process. Upstream patch: --------------- -&gt; <a href="https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html">https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html</a> Reference: ---------- -&gt; <a href="http://www.openwall.com/lists/oss-security/2018/06/07/1">http://www.openwall.com/lists/oss-security/2018/06/07/1</a>

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
QEMU qemu
debian/qemu
1:5.2+dfsg-11+deb11u3
1:5.2+dfsg-11+deb11u2
1:7.2+dfsg-7+deb12u7
1:9.0.2+ds-2
1:9.1.0+ds-3
QEMU qemu<=2.12.1
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=18.10
Redhat Openstack=8
Redhat Openstack=9
Redhat Openstack=10
Redhat Openstack=12
Redhat Openstack=13
Redhat Enterprise Linux Desktop=6.0
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Eus=7.5
Redhat Enterprise Linux Eus=7.6
Redhat Enterprise Linux Eus=7.7
Redhat Enterprise Linux Server=6.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Aus=7.7
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Server Tus=7.7
Redhat Enterprise Linux Workstation=6.0
Redhat Enterprise Linux Workstation=7.0
Redhat Virtualization=4.0
Red Hat Enterprise Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
All of
Redhat Virtualization=4.0
Red Hat Enterprise Linux=7.0

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=1586245

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-11806?

    The severity of CVE-2018-11806 is high (8.2).

  • How can an attacker exploit CVE-2018-11806?

    An attacker must first obtain the ability to execute code on the guest OS in order to exploit CVE-2018-11806.

  • Which software is affected by CVE-2018-11806?

    Qemu versions 1:2.11+dfsg-1ubuntu7.8, 2.0.0+dfsg-2ubuntu1.44, and 1:2.5+dfsg-5ubuntu10.33 are affected by CVE-2018-11806.

  • How do I fix CVE-2018-11806?

    To fix CVE-2018-11806, update Qemu to version 1:3.1+dfsg-8+deb10u8 or later if using Debian, or version 1:2.11+dfsg-1ubuntu7.8 or later if using Ubuntu.

  • Where can I find more information about CVE-2018-11806?

    You can find more information about CVE-2018-11806 at the following references: [1](https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html), [2](http://www.openwall.com/lists/oss-security/2018/06/07/1), [3](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1586249).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203