SB2025111348 - Multiple vulnerabilities in OpenPrinting cups-filters and libcupsfilters
Published: November 13, 2025 Updated: July 24, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2025-64503)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in pdftoraster. A remote attacker can pass a specially crafted PDF file with a large MediaBox value to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.
2) Uncaught Exception (CVE-ID: CVE-2026-64612)
CWE-ID: CWE-248 - Uncaught Exception
CVSSv4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an uncaught exception in the _cfImageReadPNG function when processing a malformed PNG in a print job. A remote attacker can submit a specially crafted print job containing a malformed PNG to cause a denial of service.
The issue causes the imagetoraster or imagetopdf CUPS filter process to terminate with SIGABRT, killing the in-flight print job.
3) Infinite loop (CVE-ID: CVE-2026-64611)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an infinite loop in cfIEEE1284NormalizeMakeModel when processing an IEEE-1284 device ID with an empty MDL field. A remote attacker can advertise or inject a crafted device ID to cause a denial of service.
Network delivery is possible through printer discovery via IPP or DNS-SD, and the affected consumer can hang on one CPU core indefinitely.
Remediation
Install update from vendor's website.
References
- https://github.com/OpenPrinting/cups-filters/security/advisories/GHSA-893j-2wr2-wrh9
- https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-7mxj-cfq5-84ch
- https://github.com/OpenPrinting/libcupsfilters/commit/e8888af31419
- https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4
- https://github.com/OpenPrinting/libcupsfilters/commit/4b343522823403df01f6753082df83f07d18c217