CVE-2021-3608

Publication date 18 June 2021

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest and may result in a crash of QEMU or cause undefined behavior due to the access of an uninitialized pointer. The highest threat from this vulnerability is to system availability.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	22.04 LTS jammy	Fixed 1:6.0+dfsg-2expubuntu1
	21.10 impish	Fixed 1:6.0+dfsg-2expubuntu1
	21.04 hirsute	Fixed 1:5.2+dfsg-9ubuntu3.1
	20.10 groovy	Fixed 1:5.0-5ubuntu9.9
	20.04 LTS focal	Fixed 1:4.2-3ubuntu6.17
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
qemu	Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=66ae37d8cc313f89272e711174a846a229bcdbd3

Severity score breakdown

Parameter	Value
Base score	6.0 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Changed
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-5010-1
QEMU vulnerabilities
15 July 2021