Security update for clamav (important)

This update for clamav fixes the following issues:

• Update to security release 0.99.3 (bsc#1077732)
  • CVE-2017-12376 (ClamAV Buffer Overflow in handle_pdfname Vulnerability)
  • CVE-2017-12377 (ClamAV Mew Packet Heap Overflow Vulnerability)
  • CVE-2017-12379 (ClamAV Buffer Overflow in messageAddArgument
    Vulnerability)
    • these vulnerabilities could have allowed an unauthenticated, remote
      attacker to cause a denial of service (DoS) condition
      or potentially execute arbitrary code on an affected device.
  • CVE-2017-12374 (ClamAV use-after-free Vulnerabilities)
  • CVE-2017-12375 (ClamAV Buffer Overflow Vulnerability)
  • CVE-2017-12378 (ClamAV Buffer Over Read Vulnerability)
  • CVE-2017-12380 (ClamAV Null Dereference Vulnerability)
    • these vulnerabilities could have allowed an unauthenticated, remote
      attacker to cause a denial of service (DoS) condition on an affected
      device.
  • CVE-2017-6420 (bsc#1052448)
    • this vulnerability could have allowed remote attackers to cause a
      denial of service (use-after-free) via a crafted PE file with WWPack
      compression.
  • CVE-2017-6419 (bsc#1052449)
    • ClamAV could have allowed remote attackers to cause a denial of
      service (heap-based buffer overflow and application crash) or
      possibly have unspecified other impact via a crafted CHM file.
  • CVE-2017-11423 (bsc#1049423)
    • ClamAV could have allowed remote attackers to cause a denial of
      service (stack-based buffer over-read and application crash) via a
      crafted CAB file.
  • CVE-2017-6418 (bsc#1052466)
    • ClamAV could have allowed remote attackers to cause a denial
      of service (out-of-bounds read) via a crafted e-mail message.