Input validation error in Matrix Javascript SDK - CVE-2022-39236
Published: September 29, 2022
Vulnerability identifier: #VU67744
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-39236
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Matrix.org
Affected software:
Matrix Javascript SDK
Matrix Javascript SDK
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing beacon events. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
How to mitigate CVE-2022-39236
Install updates from vendor's website.
Sources
- https://github.com/matrix-org/matrix-js-sdk/commit/a587d7c36026fe1fcf93dfff63588abee359be76
- https://github.com/matrix-org/matrix-js-sdk/releases/tag/v19.7.0
- https://github.com/matrix-org/matrix-spec-proposals/pull/3488
- https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-hvv8-5v86-r45x