UBUNTU-CVE-2020-15900

A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52. Use of a non-standard PostScript operator can allow overriding of file access controls. The 'rsearch' calculation for the 'post' size resulted in a size that was too large, and could underflow to max uint32_t. This was fixed in commit 5d499272b95a6b890a1397e11d20937de000d31b.

References

Affected packages

Ubuntu:20.04:LTS / ghostscript

Package

Name: ghostscript
Purl: pkg:deb/ubuntu/ghostscript@9.50~dfsg-5ubuntu4.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

9.50~dfsg-5ubuntu4.1

Affected versions

9.*

9.27~dfsg+0-0ubuntu3

9.27~dfsg+0-0ubuntu4

9.50~dfsg-5ubuntu1

9.50~dfsg-5ubuntu2

9.50~dfsg-5ubuntu3

9.50~dfsg-5ubuntu4

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "ghostscript",
            "binary_version": "9.50~dfsg-5ubuntu4.1"
        },
        {
            "binary_name": "ghostscript-dbg",
            "binary_version": "9.50~dfsg-5ubuntu4.1"
        },
        {
            "binary_name": "ghostscript-doc",
            "binary_version": "9.50~dfsg-5ubuntu4.1"
        },
        {
            "binary_name": "ghostscript-x",
            "binary_version": "9.50~dfsg-5ubuntu4.1"
        },
        {
            "binary_name": "libgs-dev",
            "binary_version": "9.50~dfsg-5ubuntu4.1"
        },
        {
            "binary_name": "libgs9",
            "binary_version": "9.50~dfsg-5ubuntu4.1"
        },
        {
            "binary_name": "libgs9-common",
            "binary_version": "9.50~dfsg-5ubuntu4.1"
        }
    ]
}