Improper Input Validation Affecting cups-filters package, versions <0:1.20.0-29.el8_8.3
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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Start learning- Snyk IDSNYK-RHEL8-CUPSFILTERS-8162772
- published5 Oct 2024
- disclosed26 Sept 2024
Introduced: 26 Sep 2024
CVE-2024-47076 (opens in a new tab)How to fix?
Upgrade RHEL:8 cups-filters to version 0:1.20.0-29.el8_8.3 or higher.
This issue was patched in RHSA-2024:7462.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cups-filters package and not the cups-filters package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2024-47076
- 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