CVE-2024-47076

26.09.2024, 22:15

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	8.6 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
GitHub_M	CNA	8.6 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
CISA-ADP	ADP	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 99%

Vendor	Product	Version
openprinting	libcupsfilters	𝑥 ≤ 2.0.0
openprinting	libcupsfilters	2.1:beta1

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

cups-filters

bullseye	vulnerable
bullseye (security)	1.28.7-1+deb11u3 fixed
bookworm	1.28.17-3+deb12u1 fixed
bookworm (security)	1.28.17-3+deb12u1 fixed
forky	1.28.17-6 fixed
sid	1.28.17-6 fixed
trixie	1.28.17-6 fixed

libcupsfilters

forky	2.0.0-3 fixed
sid	2.0.0-3 fixed
trixie	2.0.0-3 fixed

Ubuntu Releases

Ubuntu Product

Codename

libcupsfilters

plucky	Fixed 2.1~b1-0ubuntu3 released
oracular	Fixed 2.1~b1-0ubuntu3 released
noble	Fixed 2.0.0-0ubuntu7.1 released
jammy	dne
focal	dne

cups-filters

plucky	not-affected
oracular	not-affected
noble	not-affected
jammy	Fixed 1.28.15-0ubuntu1.3 released
focal	Fixed 1.27.4-1ubuntu0.3 released
bionic	needs-triage
xenial	needs-triage

Known Exploits!

Common Weakness Enumeration

CWE-20 - Improper Input Validation
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.

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