Security update for libarchive (important)

libarchive was updated to fix 20 security issues.

These security issues were fixed:

• CVE-2015-8918: Overlapping memcpy in CAB parser (bsc#985698).
• CVE-2015-8919: Heap out of bounds read in LHA/LZH parser (bsc#985697).
• CVE-2015-8920: Stack out of bounds read in ar parser (bsc#985675).
• CVE-2015-8921: Global out of bounds read in mtree parser (bsc#985682).
• CVE-2015-8922: Null pointer access in 7z parser (bsc#985685).
• CVE-2015-8923: Unclear crashes in ZIP parser (bsc#985703).
• CVE-2015-8924: Heap buffer read overflow in tar (bsc#985609).
• CVE-2015-8925: Unclear invalid memory read in mtree parser (bsc#985706).
• CVE-2015-8926: NULL pointer access in RAR parser (bsc#985704).
• CVE-2015-8928: Heap out of bounds read in mtree parser (bsc#985679).
• CVE-2015-8929: Memory leak in tar parser (bsc#985669).
• CVE-2015-8930: Endless loop in ISO parser (bsc#985700).
• CVE-2015-8931: Undefined behavior / signed integer overflow in mtree
  parser (bsc#985689).
• CVE-2015-8932: Compress handler left shifting larger than int size
  (bsc#985665).
• CVE-2015-8933: Undefined behavior / signed integer overflow in TAR
  parser (bsc#985688).
• CVE-2015-8934: Out of bounds read in RAR (bsc#985673).
• CVE-2016-4300: Heap buffer overflow vulnerability in the 7zip
  read_SubStreamsInfo (bsc#985832).
• CVE-2016-4301: Stack buffer overflow in the mtree parse_device
  (bsc#985826).
• CVE-2016-4302: Heap buffer overflow in the Rar decompression
  functionality (bsc#985835).
• CVE-2016-4809: Memory allocate error with symbolic links in cpio
  archives (bsc#984990).