3.9
CWE
125
Advisory Published
CVE Published
Updated

CVE-2020-29443

First published: Wed Nov 18 2020(Updated: )

An out-of-bounds read access issue was found in the ATAPI Emulator of QEMU. It occurs while processing ATAPI read command if logical block address(LBA) is set an invalid value. A guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario. Upstream patch: --------------- -&gt; <a href="https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg04255.html">https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg04255.html</a> -&gt; <a href="https://git.qemu.org/?p=qemu.git;a=commit;h=813212288970c39b1800f63e83ac6e96588095c6">https://git.qemu.org/?p=qemu.git;a=commit;h=813212288970c39b1800f63e83ac6e96588095c6</a>

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

Affected SoftwareAffected VersionHow to fix
redhat/qemu-kvm<10:1.5.3-175.el7_9.4
10:1.5.3-175.el7_9.4
redhat/qemu-kvm-rhev<10:2.12.0-48.el7_9.3
10:2.12.0-48.el7_9.3
QEMU qemu=5.1.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
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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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-29443?

    CVE-2020-29443 is an out-of-bounds read-access vulnerability in the ATAPI Emulator of QEMU.

  • How does CVE-2020-29443 impact QEMU?

    CVE-2020-29443 allows a guest user to crash the QEMU process on the host, resulting in a denial of service.

  • Which versions of QEMU are affected by CVE-2020-29443?

    QEMU version 5.1.0 is affected by CVE-2020-29443.

  • How can I fix CVE-2020-29443?

    To fix CVE-2020-29443, update QEMU to version 5.1.1 or later.

  • Is CVE-2020-29443 a high severity vulnerability?

    No, CVE-2020-29443 has a severity rating of medium.

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