privoxy - security update

Several vulnerabilities have been fixed in privoxy, a privacy enhancing
HTTP proxy:

• CVE-2015-1031, CID66394

unmap(): Prevent use-after-free if the map only consists of one item.

• CVE-2015-1031, CID66376 and CID66391

pcrs_execute(): Consistently set *result to NULL in case of errors.
Should make use-after-free in the caller less likely.

• CVE-2015-1381
  Fix multiple segmentation faults and memory leaks in the pcrs code.
• CVE-2015-1382
  Fix invalid read to prevent potential crashes.

We recommend that you upgrade your privoxy packages.

For Debian 6 Squeeze, these issues have been fixed in privoxy version 3.0.16-1+deb6u1