medium
6.5
CWE
125
Advisory Published
CVE Published
Updated
Advisory Published

CVE-2020-10756: QEMU SLiRP Networking Out-Of-Bounds Read Information Disclosure Vulnerability

First published: Thu May 14 2020(Updated: )

An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Libslirp Project Libslirp<4.3.1
Redhat Openstack=13
Redhat Enterprise Linux=7.0
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux=8.0
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=20.04
Debian Debian Linux=9.0
Debian Debian Linux=10.0
openSUSE Leap=15.0
openSUSE Leap=15.1
QEMU qemu
redhat/libslirp<4.3.1
4.3.1
ubuntu/libslirp<4.1.0-2ubuntu2.1
4.1.0-2ubuntu2.1
ubuntu/qemu<1:2.11+dfsg-1ubuntu7.31
1:2.11+dfsg-1ubuntu7.31
ubuntu/slirp4netns<1.0.1-1
1.0.1-1
debian/libslirp
4.4.0-1+deb11u2
4.7.0-1
debian/qemu
1:3.1+dfsg-8+deb10u8
1:3.1+dfsg-8+deb10u12
1:5.2+dfsg-11+deb11u3
1:5.2+dfsg-11+deb11u2
1:7.2+dfsg-7+deb12u5
1:8.2.1+ds-2
1:8.2.3+ds-2
debian/slirp4netns<=0.2.3-1
1.0.1-2
1.2.0-1
1.2.1-1

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=1835986

Remedy

https://gitlab.freedesktop.org/slirp/libslirp/-/commit/c7ede54cbd2e2b25385325600958ba0124e31cc0

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

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-10756?

    CVE-2020-10756 is a vulnerability that allows local attackers to execute arbitrary code on affected installations of QEMU.

  • How can an attacker exploit CVE-2020-10756?

    An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability.

  • Which software versions are affected by CVE-2020-10756?

    The affected software versions include Libslirp Project Libslirp 4.3.1, Redhat Openstack 13, Redhat Enterprise Linux 7.0 and 8.0, Canonical Ubuntu Linux 16.04, 18.04, and 20.04, Debian Debian Linux 9.0 and 10.0, and openSUSE Leap 15.0 and 15.1.

  • What is the severity of CVE-2020-10756?

    The severity of CVE-2020-10756 is medium with a CVSS score of 6.5.

  • How do I fix CVE-2020-10756?

    To fix CVE-2020-10756, update to the latest version of the affected software or apply the necessary patches provided by the vendors.

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.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203