jasper - security update

Several vulnerabilities were discovered in JasPer, a library for
manipulating JPEG-2000 files. The Common Vulnerabilities and Exposures
project identifies the following problems:

• CVE-2016-1577
  Jacob Baines discovered a double-free flaw in the
  jas_iccattrval_destroy function. A remote attacker could exploit
  this flaw to cause an application using the JasPer library to crash,
  or potentially, to execute arbitrary code with the privileges of the
  user running the application.
• CVE-2016-2089
  The Qihoo 360 Codesafe Team discovered a NULL pointer dereference
  flaw within the jas_matrix_clip function. A remote attacker could
  exploit this flaw to cause an application using the JasPer library
  to crash, resulting in a denial-of-service.
• CVE-2016-2116
  Tyler Hicks discovered a memory leak flaw in the
  jas_iccprof_createfrombuf function. A remote attacker could exploit
  this flaw to cause the JasPer library to consume memory, resulting
  in a denial-of-service.

For the oldstable distribution (wheezy), these problems have been fixed
in version 1.900.1-13+deb7u4.

For the stable distribution (jessie), these problems have been fixed in
version 1.900.1-debian1-2.4+deb8u1.

We recommend that you upgrade your jasper packages.