CVE-2020-15469

Description

In QEMU 4.2.0, a MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu-kvm	26.10 stonking	Not in release
	26.04 LTS resolute	Not in release
	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.10 oracular	Not in release
	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	21.04 hirsute	Not in release
	20.10 groovy	Not in release
	20.04 LTS focal	Not in release
	19.10 eoan	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
qemu	26.10 stonking	Fixed in 1:6.0+dfsg-1~ubuntu3
	26.04 LTS resolute	Fixed in 1:6.0+dfsg-1~ubuntu3
	25.10 questing	Fixed in 1:6.0+dfsg-1~ubuntu3
	25.04 plucky	Fixed in 1:6.0+dfsg-1~ubuntu3
	24.10 oracular	Fixed in 1:6.0+dfsg-1~ubuntu3
	24.04 LTS noble	Fixed in 1:6.0+dfsg-1~ubuntu3
	23.10 mantic	Fixed in 1:6.0+dfsg-1~ubuntu3
	23.04 lunar	Fixed in 1:6.0+dfsg-1~ubuntu3
	22.10 kinetic	Fixed in 1:6.0+dfsg-1~ubuntu3
	22.04 LTS jammy	Fixed in 1:6.0+dfsg-1~ubuntu3
	21.10 impish	Fixed in 1:6.0+dfsg-1~ubuntu3
	21.04 hirsute	Fixed in 1:5.2+dfsg-9ubuntu3.1
	20.10 groovy	Fixed in 1:5.0-5ubuntu9.9
	20.04 LTS focal	Fixed in 1:4.2-3ubuntu6.17
	19.10 eoan	Ignored end of life
	18.04 LTS bionic	Fixed in 1:2.11+dfsg-1ubuntu7.37
	16.04 LTS xenial	Fixed in 1:2.5+dfsg-5ubuntu10.51+esm4
	14.04 LTS trusty	Fixed in 2.0.0+dfsg-2ubuntu1.47+esm6

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro 30-day free trial

Notes

mdeslaur

impact is limited, a privileged guest user can only use this issue to perform a denial of service to their own instance

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=520f26fc6d17b71a43eaf620e834b3bdf316f3d3 Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=4f2a5202a05fc1612954804a2482f07bff105ea2 Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=24202d2b561c3b4c48bd28383c8c34b4ac66c2bf Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=f867cebaedbc9c43189f102e4cdfdff05e88df7f Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=b5bf601f364e1a14ca4c3276f88dfec024acf613 Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=921604e175b8ec06c39503310e7b3ec1e3eafe9e Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=2c9fb3b784000c1df32231e1c2464bb2e3fc4620 Upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=735754aaa15a6ed46db51fd731e88331c446ea54

Package

Patch details

qemu

Severity score breakdown

CVSS version: CVSS v3.0

Base score 2.3 · Low

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	Low

Scores

Parameter	Value
Base score	2.3 · Low
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

USN-5010-1
QEMU vulnerabilities
15 July 2021

USN-8412-1
QEMU vulnerabilities
9 June 2026

CVE-2020-15469

Cvss 3 Severity Score

Description

Status

Get expanded security coverage with Ubuntu Pro

Notes

mdeslaur

Patch details

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references

Access our resources on patching vulnerabilities