ubuntu-cve-2022-2085
Vulnerability from osv_ubuntu
Published
2022-06-16 18:15
Modified
2026-04-22 07:41
Summary
Details

A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large number of bits in memory. When allocating a buffer device, it relies on an init_device_procs defined for the device that uses it as a prototype that depends upon the number of bits per pixel. For bpp > 64, mem_x_device is used and does not have an init_device_procs defined. This flaw allows an attacker to parse a large number of bits (more than 64 bits per pixel), which triggers a NULL pointer dereference flaw, causing an application to crash.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ghostscript",
            "binary_version": "9.55.0~dfsg1-0ubuntu5.1"
          },
          {
            "binary_name": "ghostscript-x",
            "binary_version": "9.55.0~dfsg1-0ubuntu5.1"
          },
          {
            "binary_name": "libgs9",
            "binary_version": "9.55.0~dfsg1-0ubuntu5.1"
          },
          {
            "binary_name": "libgs9-common",
            "binary_version": "9.55.0~dfsg1-0ubuntu5.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ghostscript",
        "purl": "pkg:deb/ubuntu/ghostscript@9.55.0~dfsg1-0ubuntu5.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.55.0~dfsg1-0ubuntu5.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.54.0~dfsg1-0ubuntu2",
        "9.55.0~dfsg1-0ubuntu4",
        "9.55.0~dfsg1-0ubuntu5"
      ]
    }
  ],
  "aliases": [],
  "details": "A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large number of bits in memory. When allocating a buffer device, it relies on an init_device_procs defined for the device that uses it as a prototype that depends upon the number of bits per pixel. For bpp \u003e 64, mem_x_device is used and does not have an init_device_procs defined. This flaw allows an attacker to parse a large number of bits (more than 64 bits per pixel), which triggers a NULL pointer dereference flaw, causing an application to crash.",
  "id": "UBUNTU-CVE-2022-2085",
  "modified": "2026-04-22T07:41:14Z",
  "published": "2022-06-16T18:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-2085"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5643-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-2085"
    }
  ],
  "related": [
    "USN-5643-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-2085"
  ]
}



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