Packages
- cups - Common UNIX Printing System(tm)
Details
Johannes Meixner and Paul Zirnik discovered that CUPS incorrectly handled
clients that send messages slowly. A remote attacker could possibly use
this issue to cause CUPS to stop responding, resulting in a denial of
service. (CVE-2025-58436)
In addition, this update fixes a regression introduced in USN-7897-1 which
resulted in certain invalid configuration file directives to cause the CUPS
daemon to fail to start.
Johannes Meixner and Paul Zirnik discovered that CUPS incorrectly handled
clients that send messages slowly. A remote attacker could possibly use
this issue to cause CUPS to stop responding, resulting in a denial of
service. (CVE-2025-58436)
In addition, this update fixes a regression introduced in USN-7897-1 which
resulted in certain invalid configuration file directives to cause the CUPS
daemon to fail to start.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 25.10 questing | cups – 2.4.12-0ubuntu3.5 | ||
| cups-daemon – 2.4.12-0ubuntu3.5 | |||
| 25.04 plucky | cups – 2.4.12-0ubuntu1.6 | ||
| cups-daemon – 2.4.12-0ubuntu1.6 | |||
| 24.04 LTS noble | cups – 2.4.7-1.2ubuntu7.9 | ||
| cups-daemon – 2.4.7-1.2ubuntu7.9 | |||
| 22.04 LTS jammy | cups – 2.4.1op1-1ubuntu4.16 | ||
| cups-daemon – 2.4.1op1-1ubuntu4.16 | |||
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