USN-4283-1: QEMU vulnerabilities

USN-4283-1: QEMU vulnerabilities

qemu vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 19.10
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary

Several security issues were fixed in QEMU.

Software Description

• 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)

Update instructions

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

Ubuntu 19.10

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

Ubuntu 18.04 LTS

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

Ubuntu 16.04 LTS

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2020-1711
• CVE-2020-7039
• CVE-2020-8608

Source: USN-4283-1: QEMU vulnerabilities