Vulnerabilities > CVE-2021-34813 - Out-of-bounds Write vulnerability in Matrix OLM
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client (while it is attempting to retrieve an Olm encrypted room key backup from the homeserver) because olm_pk_decrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build configurations.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |