Debian: DSA-4058-1: optipng security update
Summary
For the oldstable distribution (jessie), these problems have been fixed
in version 0.7.5-1+deb8u2.
For the stable distribution (stretch), these problems have been fixed in
version 0.7.6-1+deb9u1.
We recommend that you upgrade your optipng packages.
For the detailed security status of optipng please refer to its security
tracker page at: https://security-tracker.debian.org/tracker/source-package/optipng
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/