CVE-2023-1544

Publication date 23 March 2023

Last updated 18 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	26.04 LTS resolute	Fixed 1:8.1.3+ds-1ubuntu1
	25.10 questing	Fixed 1:8.1.3+ds-1ubuntu1
	25.04 plucky	Fixed 1:8.1.3+ds-1ubuntu1
	24.10 oracular	Fixed 1:8.1.3+ds-1ubuntu1
	24.04 LTS noble	Fixed 1:8.1.3+ds-1ubuntu1
	23.10 mantic	Fixed 1:8.0.4+dfsg-1ubuntu3.23.10.2
	23.04 lunar	Fixed 1:7.2+dfsg-5ubuntu2.4
	22.10 kinetic	Ignored end of life, was deferred [2023-10-12]
	22.04 LTS jammy	Fixed 1:6.2+dfsg-2ubuntu6.16
	20.04 LTS focal	Fixed 1:4.2-3ubuntu6.28
	18.04 LTS bionic	Ignored end of standard support, was deferred
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Ignored end of standard support

Patch details

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

Package	Patch details
qemu	Upstream: 85fc35a

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-6567-1
QEMU vulnerabilities
8 January 2024