#VU59080 Buffer overflow in olm - CVE-2021-44538
Published: December 21, 2021
Vulnerability identifier: #VU59080
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-44538
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
olm
olm
Software vendor:
Matrix.org
Matrix.org
Description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a boundary error within the olm_session_describe() function in libolm. A remote attacker send specially crafted messages to the application that is using the affected library, trigger buffer overflow and perform a denial of service (DoS) attack
Remediation
Install updates from vendor's website.