Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2022-2085: 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.
Fixed packages 14
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | ghostscript | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-debuginfo | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-debugsource | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-doc | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-gtk | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-gtk-debuginfo | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-tools-dvipdf | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-tools-fonts | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-tools-printing | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-x11 | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | ghostscript-x11-debuginfo | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | libgs | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | libgs-debuginfo | 0:9.56.1-5.amzn2023.0.1 |
| Amazon Linux · 2023 | libgs-devel | 0:9.56.1-5.amzn2023.0.1 |
Vulnerabilities 1
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Unscored —
A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large number …
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2022-2085.html