# CVE-2022-2085: ghostscript: A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large numbe...

CVE-2022-2085 is fixed in 17 products on 1 platform, first by ghostscript 9.55.0~dfsg1-0ubuntu5.1, released June 16, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-2085
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0141
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 16, 2022

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ghostscript Debian 12.15 (bookworm) | 9.56.0~dfsg-1 | [DEBIAN-CVE-2022-2085](https://patchblox.com/security/data/fix/linux/debian-cve-2022-2085.md) | Jun 16, 2022 |
| Linux | ghostscript Debian 13.5 (trixie) | 9.56.0~dfsg-1 | [DEBIAN-CVE-2022-2085](https://patchblox.com/security/data/fix/linux/debian-cve-2022-2085.md) | Jun 16, 2022 |
| Linux | ghostscript Debian 14 | 9.56.0~dfsg-1 | [DEBIAN-CVE-2022-2085](https://patchblox.com/security/data/fix/linux/debian-cve-2022-2085.md) | Jun 16, 2022 |
| Linux | ghostscript Ubuntu 22.04.1 LTS (jammy) | 9.55.0~dfsg1-0ubuntu5.1 | [ghostscript 9.55.0~dfsg1-0ubuntu5.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ghostscript-9.55.0-dfsg1-0ubuntu5.1.md) | Jun 16, 2022 |
| Linux | ghostscript amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-debuginfo amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-debugsource amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-doc amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-gtk amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-gtk-debuginfo amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-tools-dvipdf amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-tools-fonts amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-tools-printing amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-x Ubuntu 22.04.1 LTS (jammy) | 9.55.0~dfsg1-0ubuntu5.1 | [ghostscript-x 9.55.0~dfsg1-0ubuntu5.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ghostscript-x-9.55.0-dfsg1-0ubuntu5.1.md) | Jun 16, 2022 |
| Linux | ghostscript-x11 amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | ghostscript-x11-debuginfo amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | libgs amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | libgs-debuginfo amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | libgs-devel amzn 2023 | 9.56.1-5.amzn2023.0.1 | [ALAS2023-2023-053](https://patchblox.com/security/data/fix/linux/alas2023-2023-053.md) | Feb 17, 2023 |
| Linux | libgs9 Ubuntu 22.04.1 LTS (jammy) | 9.55.0~dfsg1-0ubuntu5.1 | [libgs9 9.55.0~dfsg1-0ubuntu5.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libgs9-9.55.0-dfsg1-0ubuntu5.1.md) | Jun 16, 2022 |
| Linux | libgs9-common Ubuntu 22.04.1 LTS (jammy) | 9.55.0~dfsg1-0ubuntu5.1 | [libgs9-common 9.55.0~dfsg1-0ubuntu5.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libgs9-common-9.55.0-dfsg1-0ubuntu5.1.md) | Jun 16, 2022 |

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