1. Ubuntu Security Notices
  2. USN-4283-1

USN-4283-1: QEMU vulnerabilities

Publication date

18 February 2020

Overview

Several security issues were fixed in QEMU.

Releases

Packages

  • qemu - Machine emulator and virtualizer

Details

Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that QEMU
incorrectly handled iSCSI server responses. A remote attacker in control of
the iSCSI server could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code. (CVE-2020-1711)

It was discovered that the QEMU libslirp component incorrectly handled
memory. A remote attacker could use this issue to cause QEMU to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2020-7039, CVE-2020-8608)

Felipe Franciosi, Raphael Norwitz, and Peter Turschmid discovered that QEMU
incorrectly handled iSCSI server responses. A remote attacker in control of
the iSCSI server could use this issue to cause QEMU to crash, leading to a
denial of service, or possibly execute arbitrary code. (CVE-2020-1711)

It was discovered that the QEMU libslirp component incorrectly handled
memory. A remote attacker could use this issue to cause QEMU to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2020-7039, CVE-2020-8608)

Update instructions

After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
19.10 eoan qemu –  1:4.0+dfsg-0ubuntu9.4
qemu-system –  1:4.0+dfsg-0ubuntu9.4
qemu-system-arm –  1:4.0+dfsg-0ubuntu9.4
qemu-system-mips –  1:4.0+dfsg-0ubuntu9.4
qemu-system-ppc –  1:4.0+dfsg-0ubuntu9.4
qemu-system-s390x –  1:4.0+dfsg-0ubuntu9.4
qemu-system-sparc –  1:4.0+dfsg-0ubuntu9.4
qemu-system-x86 –  1:4.0+dfsg-0ubuntu9.4
18.04 bionic qemu –  1:2.11+dfsg-1ubuntu7.23
qemu-system –  1:2.11+dfsg-1ubuntu7.23
qemu-system-arm –  1:2.11+dfsg-1ubuntu7.23
qemu-system-mips –  1:2.11+dfsg-1ubuntu7.23
qemu-system-ppc –  1:2.11+dfsg-1ubuntu7.23
qemu-system-s390x –  1:2.11+dfsg-1ubuntu7.23
qemu-system-sparc –  1:2.11+dfsg-1ubuntu7.23
qemu-system-x86 –  1:2.11+dfsg-1ubuntu7.23
16.04 xenial qemu –  1:2.5+dfsg-5ubuntu10.43
qemu-system –  1:2.5+dfsg-5ubuntu10.43
qemu-system-aarch64 –  1:2.5+dfsg-5ubuntu10.43
qemu-system-arm –  1:2.5+dfsg-5ubuntu10.43
qemu-system-mips –  1:2.5+dfsg-5ubuntu10.43
qemu-system-ppc –  1:2.5+dfsg-5ubuntu10.43
qemu-system-s390x –  1:2.5+dfsg-5ubuntu10.43
qemu-system-sparc –  1:2.5+dfsg-5ubuntu10.43
qemu-system-x86 –  1:2.5+dfsg-5ubuntu10.43

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References

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