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Ubuntu Security Notice USN-4283-1
February 18, 2020
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
After a standard system update you need to restart all QEMU virtual
machines to make all the necessary changes.
References:
https://usn.ubuntu.com/4283-1
CVE-2020-1711, CVE-2020-7039, CVE-2020-8608
Package Information:
https://launchpad.net/ubuntu/+source/qemu/1:4.0+dfsg-0ubuntu9.4
https://launchpad.net/ubuntu/+source/qemu/1:2.11+dfsg-1ubuntu7.23
https://launchpad.net/ubuntu/+source/qemu/1:2.5+dfsg-5ubuntu10.43
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