Artifex Ghostscript up to 10.03.x base/gp_utf8.c decode_utf8 path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in Artifex Ghostscript up to 10.03.x. Affected by this issue is the function decode_utf8 of the file base/gp_utf8.c. The manipulation leads to path traversal. This vulnerability is listed as CVE-2024-46954. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Artifex Ghostscript up to 10.03.x. It has been rated as critical. This issue affects the function decode_utf8 of the file base/gp_utf8.c. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in decode_utf8 in base/gp_utf8.c in Artifex Ghostscript before 10.04.0. Overlong UTF-8 encoding leads to possible ../ directory traversal.

It is possible to read the advisory at bugs.ghostscript.com. The identification of this vulnerability is CVE-2024-46954 since 09/16/2024. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 210946 (Artifex Ghostscript < 10.04.0 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 10.04.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cgit.ghostscript.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (210946). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Document Processing Software

Vendor

• Artifex

Name

• Ghostscript

Version

• 10.03

License

• free

Website

• Vendor: https://artifex.com/

CPE 2.3info

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CPE 2.2info

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