OpenPrinting libcupsfilters up to 2.1b1 IPP Attribute cfGetPrinterAttributes5 input validation

Summaryinfo

A vulnerability was found in OpenPrinting libcupsfilters up to 2.1b1. It has been classified as problematic. This vulnerability affects the function cfGetPrinterAttributes5 of the component IPP Attribute Handler. The manipulation leads to input validation. This vulnerability is listed as CVE-2024-47076. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in OpenPrinting libcupsfilters up to 2.1b1. This issue affects the function cfGetPrinterAttributes5 of the component IPP Attribute Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is integrity. The summary by CVE is:

CUPS is a standards-based, open-source printing system, and `libcupsfilters` contains the code of the filters of the former `cups-filters` package as library functions to be used for the data format conversion tasks needed in Printer Applications. The `cfGetPrinterAttributes5` function in `libcupsfilters` does not sanitize IPP attributes returned from an IPP server. When these IPP attributes are used, for instance, to generate a PPD file, this can lead to attacker controlled data to be provided to the rest of the CUPS system.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2024-47076 since 09/17/2024. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at packetstormsecurity.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 207865 (RHEL OpenPrinting cups-filters (RHSB-2024:002)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (207865) and CERT Bund (WID-SEC-2024-2240). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Fedora Linux
• Open Source CUPS
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• IGEL OS
• RESF Rocky Linux
• IBM App Connect Enterprise
• Dell PowerProtect Data Domain
• Dell PowerProtect Data Domain Management Center
• Dell PowerProtect Data Domain OS
• Dell NetWorker

Productinfo

Type

• Printing Software

Vendor

• OpenPrinting

Name

• libcupsfilters

Version

• 2.1b1

Website

• Product: https://github.com/OpenPrinting/libcupsfilters/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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