F-Prot Antivirus is a FRISK Software antivirus program that can used with procmail.
F-Prot Antivirus version 4.6.7 fixes a heap-based buffer overflow, an infinite loop, and other unspecified vulnerabilities.
Among other weaker impacts, a remote attacker could send an e-mail containing a malicious file that would trigger the buffer overflow vulnerability and execute arbitrary code with the privileges of the user running F-Prot, which may be the root user.
There is no known workaround at this time.
All F-Prot users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-antivirus/f-prot-4.6.7"