#VU56451 Buffer overflow in Glewlwyd SSO server - CVE-2021-40818

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Main Vulnerability Database Vulnerabilities #VU56451

#VU56451 Buffer overflow in Glewlwyd SSO server - CVE-2021-40818

Published: September 10, 2021


Vulnerability identifier: #VU56451
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-40818
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Glewlwyd SSO server
Software vendor:
babelouest

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in scheme/webauthn.c. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.

External links