Debian LTS: DLA-1597-1: gnuplot security update
Summary
Due to special toolchain hardening in Debian, CVE-2018-19492 is not
security relevant, but it is a bug and the patch was applied for the sake
of completeness. Probably some downstream project does not have the same
toolchain settings.
For Debian 8 "Jessie", these problems have been fixed in version
4.6.6-2+deb8u1.
We recommend that you upgrade your gnuplot packages.