Updated gimp packages fix security vulnerabilities:
Several vulnerabilities were discovered in GIMP which could result in denial of service (application crash) or potentially the execution of arbitrary code if malformed files are opened (CVE-2017-17784, CVE-2017-17785, CVE-2017-17786, CVE-2017-17787, CVE-2017-17788, CVE-2017-17789).
Also, the webkit1-based help browser plugin has been disabled in favor of using an external browser for the help pages. This is due to security issues in webkit.