Advisory Published

USN-4372-1: QEMU vulnerabilities

First published: Thu May 21 2020(Updated: )

It was discovered that QEMU incorrectly handled bochs-display devices. A local attacker in a guest could use this to cause a denial of service or possibly execute arbitrary code in the host. This issue only affected Ubuntu 19.10. (CVE-2019-15034) It was discovered that QEMU incorrectly handled memory during certain VNC operations. A remote attacker could possibly use this issue to cause QEMU to consume resources, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.10. (CVE-2019-20382) It was discovered that QEMU incorrectly generated QEMU Pointer Authentication signatures on ARM. A local attacker could possibly use this issue to bypass PAuth. This issue only affected Ubuntu 19.10. (CVE-2020-10702) Ziming Zhang discovered that QEMU incorrectly handled ATI VGA emulation. A local attacker in a guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-11869) Aviv Sasson discovered that QEMU incorrectly handled Slirp networking. A remote attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.10. (CVE-2020-1983)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/qemu<1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.1
Ubuntu Linux=20.04
All of
ubuntu/qemu-system<1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.1
Ubuntu Linux=20.04
All of
ubuntu/qemu-system-arm<1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.1
Ubuntu Linux=20.04
All of
ubuntu/qemu-system-mips<1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.1
Ubuntu Linux=20.04
All of
ubuntu/qemu-system-ppc<1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.1
Ubuntu Linux=20.04
All of
ubuntu/qemu-system-s390x<1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.1
Ubuntu Linux=20.04
All of
ubuntu/qemu-system-sparc<1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.1
Ubuntu Linux=20.04
All of
ubuntu/qemu-system-x86<1:4.2-3ubuntu6.1
1:4.2-3ubuntu6.1
Ubuntu Linux=20.04
All of
ubuntu/qemu<1:4.0+dfsg-0ubuntu9.6
1:4.0+dfsg-0ubuntu9.6
Ubuntu Linux=19.10
All of
ubuntu/qemu-system<1:4.0+dfsg-0ubuntu9.6
1:4.0+dfsg-0ubuntu9.6
Ubuntu Linux=19.10
All of
ubuntu/qemu-system-arm<1:4.0+dfsg-0ubuntu9.6
1:4.0+dfsg-0ubuntu9.6
Ubuntu Linux=19.10
All of
ubuntu/qemu-system-mips<1:4.0+dfsg-0ubuntu9.6
1:4.0+dfsg-0ubuntu9.6
Ubuntu Linux=19.10
All of
ubuntu/qemu-system-ppc<1:4.0+dfsg-0ubuntu9.6
1:4.0+dfsg-0ubuntu9.6
Ubuntu Linux=19.10
All of
ubuntu/qemu-system-s390x<1:4.0+dfsg-0ubuntu9.6
1:4.0+dfsg-0ubuntu9.6
Ubuntu Linux=19.10
All of
ubuntu/qemu-system-sparc<1:4.0+dfsg-0ubuntu9.6
1:4.0+dfsg-0ubuntu9.6
Ubuntu Linux=19.10
All of
ubuntu/qemu-system-x86<1:4.0+dfsg-0ubuntu9.6
1:4.0+dfsg-0ubuntu9.6
Ubuntu Linux=19.10
All of
ubuntu/qemu<1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.26
Ubuntu Linux=18.04
All of
ubuntu/qemu-system<1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.26
Ubuntu Linux=18.04
All of
ubuntu/qemu-system-arm<1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.26
Ubuntu Linux=18.04
All of
ubuntu/qemu-system-mips<1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.26
Ubuntu Linux=18.04
All of
ubuntu/qemu-system-ppc<1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.26
Ubuntu Linux=18.04
All of
ubuntu/qemu-system-s390x<1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.26
Ubuntu Linux=18.04
All of
ubuntu/qemu-system-sparc<1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.26
Ubuntu Linux=18.04
All of
ubuntu/qemu-system-x86<1:2.11+dfsg-1ubuntu7.26
1:2.11+dfsg-1ubuntu7.26
Ubuntu Linux=18.04
All of
ubuntu/qemu<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04
All of
ubuntu/qemu-system<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04
All of
ubuntu/qemu-system-aarch64<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04
All of
ubuntu/qemu-system-arm<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04
All of
ubuntu/qemu-system-mips<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04
All of
ubuntu/qemu-system-ppc<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04
All of
ubuntu/qemu-system-s390x<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04
All of
ubuntu/qemu-system-sparc<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04
All of
ubuntu/qemu-system-x86<1:2.5+dfsg-5ubuntu10.44
1:2.5+dfsg-5ubuntu10.44
Ubuntu Linux=16.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-4372-1?

    The severity of USN-4372-1 is considered high due to the potential for denial of service and arbitrary code execution.

  • How do I fix USN-4372-1?

    To fix USN-4372-1, you should update the affected QEMU packages to version 1:4.2-3ubuntu6.1 or later.

  • Which versions of Ubuntu are affected by USN-4372-1?

    USN-4372-1 affects Ubuntu 19.10, and potentially systems using vulnerable QEMU packages.

  • Is USN-4372-1 a local or remote vulnerability?

    USN-4372-1 is a local vulnerability that can be exploited by an attacker within a guest environment.

  • What can be compromised due to USN-4372-1?

    Due to USN-4372-1, an attacker could potentially cause denial of service or execute arbitrary code on the host system.

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