What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 79.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-09-26 · updated 2026-06-17
• Weakness: CWE-20

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.

Affected products

• OpenPrinting libcupsfilters: through 2.0.0; 2.1-beta1

References

• https://github.com/OpenPrinting/cups-browsed/security/advisories/GHSA-rj88-6mr5-rcw8
• https://github.com/OpenPrinting/cups-filters/security/advisories/GHSA-p9rh-jxmq-gq47
• https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-w63j-6g73-wmg5
• https://github.com/OpenPrinting/libppd/security/advisories/GHSA-7xfx-47qg-grp6
• https://www.cups.org
• https://www.evilsocket.net/2024/09/26/Attacking-UNIX-systems-via-CUPS-Part-I
• https://github.com/OpenPrinting/libcupsfilters/commit/95576ec3d20c109332d14672a807353cdc551018
• https://lists.debian.org/debian-lts-announce/2024/09/msg00048.html
• https://security.netapp.com/advisory/ntap-20241011-0001/

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