F-PROT Antivirus: Multiple Denial of Service vulnerabilities

Security Team Contact Address

Updated April 14, 2009

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-antivirus/f-prot	< 6.0.2	>= 6.0.2	All supported architectures

Related bugreports: #232665, #253497

Multiple errors in F-PROT Antivirus may lead to a Denial of Service.

2. Impact Information

F-PROT Antivirus is a multi-platform virus scanner for workstations and mail servers.

The following vulnerabilities were found:

Multiple errors when processing UPX, ASPack or Microsoft Office files (CVE-2008-3243).
Infinite Sergio Alvarez of n.runs AG reported an invalid memory access when processing a CHM file with a large nb_dir value (CVE-2008-3244).
Jonathan Brossard from iViZ Techno Solutions reported that F-PROT Antivirus does not correctly process ELF binaries with corrupted headers (CVE-2008-5747).

A remote attacker could entice a user or automated system to scan a specially crafted file, leading to a crash or infinite loop.

3. Resolution Information

There is no known workaround at this time.

All F-PROT Antivirus users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/f-prot-6.0.2"

4. References