CVE-2020-13754: Buffer Overflow
First published: Mon Jun 01 2020(Updated: )
An OOB access issue was found in the Message Signalled Interrupt (MSI-X) device support of QEMU. It could occur while performing MSI-X mmio operations when a guest sent address goes beyond the mmio region. A guest user/process may use this flaw to crash the QEMU process resulting in DoS scenario. Upstream patch: --------------- -> <a href="https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg03732.html">https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg03732.html</a> Reference: ---------- -> <a href="https://www.openwall.com/lists/oss-security/2020/06/01/6">https://www.openwall.com/lists/oss-security/2020/06/01/6</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU qemu | <=5.0.1 | |
| 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 | |
| redhat/QEMU | <5.0.1 | 5.0.1 |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.2.0+ds-2 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2020/06/01/6
- http://www.openwall.com/lists/oss-security/2020/06/15/8
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
- https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00004.html
- https://security.gentoo.org/glsa/202011-09
- https://security.netapp.com/advisory/ntap-20200608-0007/
- https://usn.ubuntu.com/4467-1/
- https://www.debian.org/security/2020/dsa-4728
- https://launchpad.net/bugs/cve/CVE-2020-13754
- https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg03732.html
- https://www.openwall.com/lists/oss-security/2020/06/01/6
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1842364
- https://access.redhat.com/errata/RHSA-2021:2521
- https://access.redhat.com/security/cve/cve-2020-13754
- https://access.redhat.com/errata/RHSA-2021:3061
- https://bugzilla.redhat.com/show_bug.cgi?id=1842363
- https://git.qemu.org/?p=qemu.git;a=commitdiff;h=5d971f9e672507210e77d020d89e0e89165c8fc9
- https://git.qemu.org/?p=qemu.git;a=commitdiff;h=dba04c3488c4699f5afe96f66e448b1d447cf3fb
- https://git.qemu.org/?p=qemu.git;a=commitdiff;h=8e67fda2dd6202ccec093fda561107ba14830a17
- https://git.qemu.org/?p=qemu.git;a=commitdiff;h=70b78d4e71494c90d2ccb40381336bc9b9a22f79
- https://security-tracker.debian.org/tracker/CVE-2020-13754
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13754
- https://nvd.nist.gov/vuln/detail/CVE-2020-13754
- https://ubuntu.com/security/CVE-2020-13754
Frequently Asked Questions
What is CVE-2020-13754?
CVE-2020-13754 is a vulnerability in QEMU 4.2.0 that allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.
How do I know if I am affected by CVE-2020-13754?
You are affected by CVE-2020-13754 if you are using QEMU 4.2.0.
What is the severity of CVE-2020-13754?
The severity of CVE-2020-13754 is medium (6.7).
How do I fix CVE-2020-13754 in Red Hat?
To fix CVE-2020-13754 in Red Hat, you need to update QEMU to version 5.0.1.
How do I fix CVE-2020-13754 in Ubuntu?
To fix CVE-2020-13754 in Ubuntu, you need to update QEMU to the specified versions: 1:2.5+dfsg-5ubuntu10.45 for Xenial, 1:2.11+dfsg-1ubuntu7.31 for Bionic, and 1:4.2-3ubuntu6.4 for Focal.
How do I fix CVE-2020-13754 in Debian?
To fix CVE-2020-13754 in Debian, you need to update QEMU to the specified versions: 1:3.1+dfsg-8+deb10u8, 1:3.1+dfsg-8+deb10u11, 1:5.2+dfsg-11+deb11u3, 1:5.2+dfsg-11+deb11u2, 1:7.2+dfsg-7+deb12u2, or 1:8.1.2+ds-1.
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