8/2/2021

USN-4725-1: QEMU vulnerabilities

First published: Mon Feb 08 2021(Updated: )

It was discovered that QEMU incorrectly handled memory in iSCSI emulation. An attacker inside the guest could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2020-11947) Alexander Bulekov discovered that QEMU incorrectly handled Intel e1000e emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-15859) Alexander Bulekov discovered that QEMU incorrectly handled memory region cache. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2020-27821) Cheol-woo Myung discovered that QEMU incorrectly handled Intel e1000e emulation. An attacker inside the guest could use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2020-28916) Wenxiang Qian discovered that QEMU incorrectly handled ATAPI emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-29443) It was discovered that QEMU incorrectly handled VirtFS directory sharing. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2021-20181)

Affected Software	Affected Version	How to fix
All of
ubuntu/qemu-system	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-arm	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-mips	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-misc	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-ppc	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-s390x	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-sparc	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-x86	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-x86-microvm	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system-x86-xen	<1:5.0-5ubuntu9.4	1:5.0-5ubuntu9.4
	=20.10
All of
ubuntu/qemu-system	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-arm	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-mips	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-misc	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-ppc	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-s390x	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-sparc	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-x86	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-x86-microvm	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system-x86-xen	<1:4.2-3ubuntu6.12	1:4.2-3ubuntu6.12
	=20.04
All of
ubuntu/qemu-system	<1:2.11+dfsg-1ubuntu7.35	1:2.11+dfsg-1ubuntu7.35
	=18.04
All of
ubuntu/qemu-system-arm	<1:2.11+dfsg-1ubuntu7.35	1:2.11+dfsg-1ubuntu7.35
	=18.04
All of
ubuntu/qemu-system-mips	<1:2.11+dfsg-1ubuntu7.35	1:2.11+dfsg-1ubuntu7.35
	=18.04
All of
ubuntu/qemu-system-misc	<1:2.11+dfsg-1ubuntu7.35	1:2.11+dfsg-1ubuntu7.35
	=18.04
All of
ubuntu/qemu-system-ppc	<1:2.11+dfsg-1ubuntu7.35	1:2.11+dfsg-1ubuntu7.35
	=18.04
All of
ubuntu/qemu-system-s390x	<1:2.11+dfsg-1ubuntu7.35	1:2.11+dfsg-1ubuntu7.35
	=18.04
All of
ubuntu/qemu-system-sparc	<1:2.11+dfsg-1ubuntu7.35	1:2.11+dfsg-1ubuntu7.35
	=18.04
All of
ubuntu/qemu-system-x86	<1:2.11+dfsg-1ubuntu7.35	1:2.11+dfsg-1ubuntu7.35
	=18.04
All of
ubuntu/qemu-system	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04
All of
ubuntu/qemu-system-aarch64	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04
All of
ubuntu/qemu-system-arm	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04
All of
ubuntu/qemu-system-mips	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04
All of
ubuntu/qemu-system-misc	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04
All of
ubuntu/qemu-system-ppc	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04
All of
ubuntu/qemu-system-s390x	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04
All of
ubuntu/qemu-system-sparc	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04
All of
ubuntu/qemu-system-x86	<1:2.5+dfsg-5ubuntu10.49	1:2.5+dfsg-5ubuntu10.49
	=16.04

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(Contains the following vulnerabilities)

agent/references
agent/severity
agent/type
agent/first-publish-date
agent/last-modified-date
agent/softwarecombine
agent/title
agent/description
collector/usn
source/Ubuntu
anchor-related/USN-5010-1
agent/software-canonical-lookup
agent/tags
agent/event
agent/trending
package-manager/ubuntu
vendor/ubuntu
canonical/ubuntu ubuntu
version/ubuntu ubuntu/20.10
version/ubuntu ubuntu/20.04
version/ubuntu ubuntu/18.04
version/ubuntu ubuntu/16.04

USN-4725-1: QEMU vulnerabilities

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