Description
An input validation issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. A malicious application may be able to read restricted memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | macOS | unspecified – < 11.1 | 11.1 |
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 | cups | 2.3.3op2-1 | — |
| Debian 13 | cups | 2.3.3op2-1 | — |
| Debian 12 | cups | 2.3.3op2-1 | — |
| Debian 9 | cups | 2.2.1-8+deb9u7 | DLA-2800-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | cups | 2.4.1op1-1ubuntu4.1 | USN-5454-1 |
| Ubuntu 20.04 LTS | cups | 2.3.1-9ubuntu1.2 | USN-5454-1 |
| Ubuntu 18.04 LTS | cups | 2.2.7-1ubuntu2.9 | USN-5454-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | cups | 2.1.3-4ubuntu0.11+esm1 | USN-5454-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | cups +6 | 1:2.2.6-40.el8 | RHSA-2021:4393 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | cups +5 | 1:2.2.6-40.el8 | ALSA-2021:4393 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | cups | 1:2.2.6-40.el8 | RLSA-2021:4393 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | cups | 2.2.7-3.20.1 | SUSE-SU-2021:0285-1 |
| SLES 12 SP5 | cups | 1.7.5-20.33.1 | SUSE-SU-2021:0286-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | cups | 1.7.5-20.33.1 | SUSE-SU-2021:0286-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | cups | 2.3.3op2-4.2 | openSUSE-SU-2024:10707-1 |
| openSUSE Leap 15.2 | cups | 2.2.7-lp152.9.3.1 | openSUSE-SU-2021:0253-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | cups +6 | 1:2.2.6-40.el8 | ELSA-2021-4393 |
Advisories 12
- ALSA-2021:4393 Moderate: cups security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:4393 Red Hat Security Advisory: cups security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5454-2 cups vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-5454-1 cups vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-2800-1 cups - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:4393 Moderate: cups security and bug fix update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2021:0285-1 Security update for cups SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0286-1 Security update for cups SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0253-1 Security update for cups SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10707-1 cups-2.3.3op2-4.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-1086 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 19, 2025
- ELSA-2021-4393 Moderate: cups security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 16, 2021