CVE-2022-39236

Published: 28 September 2022

Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Starting with version 17.1.0-rc.1, improperly formed beacon events can disrupt or impede the matrix-js-sdk from functioning properly, potentially impacting the consumer's ability to process data safely. Note that the matrix-js-sdk can appear to be operating normally but be excluding or corrupting runtime data presented to the consumer. This is patched in matrix-js-sdk v19.7.0. Redacting applicable events, waiting for the sync processor to store data, and restarting the client are possible workarounds. Alternatively, redacting the applicable events and clearing all storage will fix the further perceived issues. Downgrading to an unaffected version, noting that such a version may be subject to other vulnerabilities, will additionally resolve the issue.

Priority

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package	Release	Status
node-matrix-js-sdk Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	jammy	Needs triage
	kinetic	Needs triage
	lunar	Needs triage
	trusty	Ignored (out of standard support)
	upstream	Needs triage
	xenial	Ignored (out of standard support)
thunderbird Launchpad, Ubuntu, Debian	bionic	Released (1:102.4.2+build2-0ubuntu0.18.04.1)
	focal	Released (1:102.4.2+build2-0ubuntu0.20.04.1)
	jammy	Released (1:102.4.2+build2-0ubuntu0.22.04.1)
	kinetic	Released (1:102.4.2+build2-0ubuntu0.22.10.1)
	lunar	Not vulnerable (1:102.6.0+build1-0ubuntu1)
	trusty	Does not exist
	upstream	Needs triage
	xenial	Needed

Severity score breakdown

Parameter	Value
Base score	5.3
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

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