CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Detected Signals
remote code execution code execution
Note: these links are listed for security research and verification purposes only.
CVE
CVE-2021-34813
Severity
CRITICAL
CVSS
9.8
EPSS
4.26%
Original NVD Description
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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)