A vulnerability affecting F-Secure antivirus engine was discovered whereby unpacking UPX file can lead to denial-of-service. The vulnerability can be exploited remotely by an attacker. A successful attack will result in denial-of-service of the antivirus engine.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-40833
• https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame
• https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40833