SynopsisThe remote Debian host is missing a security update.
DescriptionSeveral issues in libgd2, a graphics library that allows to quickly draw images, have been found.
CVE-2019-6977 A potential double free in gdImage*Ptr() has been reported by Solmaz Salimi (aka. Rooney).
CVE-2019-6978 Simon Scannell found a heap-based buffer overflow, exploitable with crafted image data.
CVE-2018-1000222 A new double free vulnerabilities in gdImageBmpPtr() has been reported by Solmaz Salimi (aka. Rooney).
CVE-2018-5711 Due to an integer signedness error the GIF core parsing function can enter an infinite loop. This will lead to a Denial of Service and exhausted server resources.
For Debian 8 'Jessie', these problems have been fixed in version 2.1.0-5+deb8u12.
We recommend that you upgrade your libgd2 packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpgrade the affected packages.