Denial-of-service of the antivirus engine when scanning a fuzzed file.
RISK LEVEL: Medium
FIX: No user action is required. The required fix has been published through automatic update channel with Capricorn update 2021-09-29_03.
A denial-of-service (DoS) vulnerability was discovered in F-Secure Atlant whereby the AVRDL unpacking module component used in certain F-Secure products can crash while scanning a fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in denial-of-service (DoS) of the antivirus engine.
This issue was reported to F-Secure through the Vulnerability Reward Program. No known exploit or attack has been seen in the wild.
F-Secure Corporation would like to thank Antti Levomäki and Christian Jalio from Forcepoint for bringing this issue to our attention.
Date Issued: 2021-10-08