Security update for clamav

Open Source Vulnerabilities SUSE-SU-2018:0863-1

This update for clamav fixes the following issues: Security issues fixed: - CVE-2012-6706: VMSF_DELTA filter inside the unrar implementation allows an arbitrary memory write (bsc#1045315). - CVE-2017-6419: A heap-based buffer overflow that can lead to a denial of service in libmspack via a crafted CHM file (bsc#1052449). - CVE-2017-11423: A stack-based buffer over-read that can lead to a denial of service in mspack via a crafted CAB file (bsc#1049423). - CVE-2018-1000085: An out-of-bounds heap read vulnerability was found in XAR parser that can lead to a denial of service (bsc#1082858). - CVE-2018-0202: Fixed two vulnerabilities in the PDF parsing code (bsc#1083915).