Debian: DSA-3620-1 Moderate: Security Flaws in libpng and Resource Drain

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....