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.

The remote host is affected by the vulnerability described in GLSA-202309-03 (GPL Ghostscript: Multiple Vulnerabilities)

  - 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. (CVE-2022-2085)

  - In Artifex Ghostscript through 10.01.0, there is a buffer overflow leading to potential corruption of data     internal to the PostScript interpreter, in base/sbcp.c. This affects BCPEncode, BCPDecode, TBCPEncode, and     TBCPDecode. If the write buffer is filled to one byte less than full, and one then tries to write an     escaped character, two bytes are written. (CVE-2023-28879)

  - Artifex Ghostscript through 10.01.2 mishandles permission validation for pipe devices (with the %pipe%     prefix or the | pipe character prefix). (CVE-2023-36664)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-053 advisory.

    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. (CVE-2022-2085)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of ghostscript installed on the remote host is prior to 9.56.1-5. It is, therefore, affected by a vulnerability as referenced in the ALAS2022-2022-230 advisory.

  - 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. (CVE-2022-2085)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202211-11 (GPL Ghostscript: Multiple Vulnerabilities)

  - A trivial sandbox (enabled with the `-dSAFER` option) escape flaw was found in the ghostscript interpreter     by injecting a specially crafted pipe command. This flaw allows a specially crafted document to execute     arbitrary commands on the system in the context of the ghostscript interpreter. The highest threat from     this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3781)

  - 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. (CVE-2022-2085)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5643-1 advisory.

    It was discovered that GhostScript incorrectly handled certain PDF files. If a user or automated system     were tricked into opening a specially crafted PDF file, a remote attacker could use this issue to cause     GhostScript to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue     only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27792)

    It was discovered that GhostScript incorrectly handled certain PDF files. If a user or automated system     were tricked into opening a specially crafted PDF file, a remote attacker could use this issue to cause     GhostScript to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue     only affected Ubuntu 22.04 LTS. (CVE-2022-2085)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Artifex Ghostscript installed on the remote Windows host is 9.55. It is, therefore, affected by a NULL pointer dereference vulnerabiulity leading to denial of service. The DoS occurs when Ghostscript 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.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
181507	GLSA-202309-03 : GPL Ghostscript: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	critical
173145	Amazon Linux 2023 : ghostscript, ghostscript-gtk, ghostscript-tools-dvipdf (ALAS2023-2023-053)	Nessus	Amazon Linux Local Security Checks	medium
168560	Amazon Linux 2022 : ghostscript (ALAS2022-2022-230)	Nessus	Amazon Linux Local Security Checks	medium
168044	GLSA-202211-11 : GPL Ghostscript: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	critical
165504	Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : Ghostscript vulnerabilities (USN-5643-1)	Nessus	Ubuntu Local Security Checks	high
165303	Artifex Ghostscript 9.55 DoS	Nessus	Windows	medium

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CVE-2022-2085

medium

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medium

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medium