USN-7366-1: Rack vulnerabilities

24 March 2025

Several security issues were fixed in Rack.

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Releases

Packages

  • ruby-rack - modular Ruby webserver interface

Details

Nhật Thái Đỗ discovered that Rack incorrectly handled certain usernames. A
remote attacker could possibly use this issue to perform CRLF injection.
(CVE-2025-25184)

Phạm Quang Minh discovered that Rack incorrectly handled certain headers. A
remote attacker could possibly use this issue to perform log injection.
(CVE-2025-27111)

Phạm Quang Minh discovered that Rack did not properly handle relative file
paths. A remote attacker could potentially exploit this to include local
files that should have been inaccessible. (CVE-2025-27610)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 24.10
Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

References

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Further reading