Ghostscript could be made to access arbitrary files if it opened a specially crafted file.
Hiroki Matsukuma discovered that the PDF interpreter in Ghostscript did not properly restrict privileged calls when ‘-dSAFER’ restrictions were in effect. If a user or automated system were tricked into processing a specially crafted file, a remote attacker could possibly use this issue to access arbitrary files. (CVE-2019-14811, CVE-2019-14812, CVE-2019-14813, CVE-2019-14817)
29 August 2019
A security issue affects these releases of Ubuntu and its derivatives:
Ghostscript could be made to access arbitrary files if it opened a specially crafted file.
Hiroki Matsukuma discovered that the PDF interpreter in Ghostscript did not properly restrict privileged calls when ‘-dSAFER’ restrictions were in effect. If a user or automated system were tricked into processing a specially crafted file, a remote attacker could possibly use this issue to access arbitrary files. (CVE-2019-14811, CVE-2019-14812, CVE-2019-14813, CVE-2019-14817)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon