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CVE-2024-47076— libcupsfilters's cfGetPrinterAttributes5 does not validate IPP attributes returned from an IPP server

Quick assessment

Affected
OpenPrinting libcupsfilters
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenPrinting CUPS是OpenPrinting公司的一个适用于 Linux® 和其他类 Unix® 操作系统的基于标准的开源打印系统。 CUPS存在输入验证错误漏洞，该漏洞源于libcupsfilters中的cfGetPrinterAttributes5函数不会清理从 IPP 服务器返回的 IPP 属性。当使用这些 IPP 属性时，可能导致攻击者控制的数据被提供给 CUPS 系统的其余部分。

CVSS 8.6 · High EPSS 77.64% · P100

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-47076

Vulnerability Information
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Vulnerability Title
libcupsfilters's cfGetPrinterAttributes5 does not validate IPP attributes returned from an IPP server
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
CUPS 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenPrinting CUPS是OpenPrinting公司的一个适用于 Linux® 和其他类 Unix® 操作系统的基于标准的开源打印系统。 CUPS存在输入验证错误漏洞，该漏洞源于libcupsfilters中的cfGetPrinterAttributes5函数不会清理从 IPP 服务器返回的 IPP 属性。当使用这些 IPP 属性时，可能导致攻击者控制的数据被提供给 CUPS 系统的其余部分。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenPrinting libcupsfilters <= 2.1b1 -

II. Public POCs for CVE-2024-47076

# POC Description Source Link Shenlong Link
1 Linux ve Unix sistemlerinizin CVE-2024-47076 açığından etkilenip etkilenmediğini bu script ile öğrenebilirsiniz. https://github.com/mutkus/CVE-2024-47076 POC Details
2 Ultrafast CUPS-browsed scanner (CVE-2024-47076, CVE-2024-47175, CVE-2024-47176, CVE-2024-47177) https://github.com/lkarlslund/jugular POC Details
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Qwen3.6-35B-A3B · 12769 chars
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III. Intelligence Information for CVE-2024-47076

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Vendor Advisories for CVE-2024-47076 (4)

Vendor Pages for CVE-2024-47076 (1)

Other References for CVE-2024-47076 (1)

Same Patch Batch · OpenPrinting · 2024-09-26 · 3 CVEs total

CVE-2024-47175 8.6 HIGH libppd's ppdCreatePPDFromIPP2 function does not sanitize IPP attributes when creating the
CVE-2024-47176 5.3 MEDIUM cups-browsed binds to `INADDR_ANY:631`, trusting any packet from any source

IV. Related Vulnerabilities

Same product: libcupsfilters
Same vendor: OpenPrinting
Same weakness: CWE-20

V. Comments for CVE-2024-47076

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