Description
A flaw was found in libcupsfilters. The cfIEEE1284NormalizeMakeModel() function enters an infinite loop when processing a printer-advertised IEEE-1284 device ID with an empty model field, causing sustained CPU consumption. A network-adjacent attacker could exploit this by broadcasting a specially crafted printer advertisement, leading to denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libcupsfilters | No fix yet | — |
| Debian 13 | libcupsfilters | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | cups-filters +1 | No fix yet | — |
| Ubuntu 26.04 LTS | cups-filters +1 | No fix yet | — |
| Ubuntu 24.04 LTS | cups-filters +1 | No fix yet | — |
| Ubuntu 22.04 LTS | cups-filters | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | cups-filters | No fix yet | — |
| Ubuntu Pro 18.04 LTS | cups-filters | No fix yet | — |
| Ubuntu Pro 16.04 LTS | cups-filters | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | libcupsfilters | 1:2.0.0-13.el10_2 | RHSA-2026:56965 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | libcupsfilters | 1:2.0.0-13.el10_2 | ALSA-2026:56965 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | libcupsfilters | 1:2.0.0-13.el10_2 | RLSA-2026:56965 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | cups-filters | 1.25.0-150200.3.31.1 | SUSE-SU-2026:3935-1 |
| SLES 12 SP5 | cups-filters | 1.0.58-19.38.1 | SUSE-SU-2026:3918-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | libcupsfilters | 2.1.1-160000.3.1 | SUSE-SU-2026:23715-1, SUSE-SU-2026:23695-1 |
| SLES 16.0 | libcupsfilters | 2.1.1-160000.3.1 | SUSE-SU-2026:23715-1, SUSE-SU-2026:23695-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | cups-filters | 1.28.17-9.1 | openSUSE-SU-2026:11681-1 |
| openSUSE Tumbleweed | libcupsfilters | 2.1.1-2.1 | openSUSE-SU-2026:11687-1 |
| openSUSE Leap 16.0 | cups-filters | 1.28.17-bp160.2.1 | openSUSE-SU-2026:21850-1 |
| openSUSE Leap 16.0 | libcupsfilters | 2.1.1-160000.3.1 | openSUSE-SU-2026:21818-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | libcupsfilters | 1:2.0.0-13.el10_2 | ELSA-2026-56965 |
Advisories 12
- ALSA-2026:56965 Moderate: libcupsfilters security update AlmaLinux Security Advisories · Oct 29, 2026
- SUSE-SU-2026:23715-1 Security update for libcupsfilters SUSE / openSUSE Security Updates · Sep 29, 2026
- SUSE-SU-2026:23695-1 Security update for libcupsfilters SUSE / openSUSE Security Updates · Sep 29, 2026
- openSUSE-SU-2026:21850-1 Security update for cups-filters SUSE / openSUSE Security Updates · Sep 15, 2026
- openSUSE-SU-2026:21818-1 Security update for libcupsfilters SUSE / openSUSE Security Updates · Sep 12, 2026
- SUSE-SU-2026:3935-1 Security update for cups-filters SUSE / openSUSE Security Updates · Sep 10, 2026
- SUSE-SU-2026:3918-1 Security update for cups-filters SUSE / openSUSE Security Updates · Sep 10, 2026
- openSUSE-SU-2026:11687-1 libcupsfilters-2.1.1-2.1 on GA media SUSE / openSUSE Security Updates · Sep 5, 2026
- openSUSE-SU-2026:11681-1 cups-filters-1.28.17-9.1 on GA media SUSE / openSUSE Security Updates · Sep 5, 2026
- RHSA-2026:56965 Red Hat Security Advisory: libcupsfilters security update Red Hat Security Advisories (RHSA) · Aug 24, 2026
- RLSA-2026:56965 Moderate: libcupsfilters security update Rocky Linux Security Advisories · Aug 20, 2026
- ELSA-2026-56965 Moderate: libcupsfilters security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Aug 19, 2026
References
- RHSA-2026:56965 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-64611 vdb-entry
- RHBZ#2502799 issue-tracking
- https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-rcq7-rv5g-j3r4