vulnerability
Ubuntu: (Multiple Advisories) (CVE-2025-24294): Ruby vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Jul 12, 2025 | Jul 25, 2025 | Sep 5, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Jul 12, 2025
Added
Jul 25, 2025
Modified
Sep 5, 2025
Description
The attack vector is a potential Denial of Service (DoS). The vulnerability is caused by an insufficient check on the length of a decompressed domain name within a DNS packet.
An attacker can craft a malicious DNS packet containing a highly compressed domain name. When the resolv library parses such a packet, the name decompression process consumes a large amount of CPU resources, as the library does not limit the resulting length of the name.
This resource consumption can cause the application thread to become unresponsive, resulting in a Denial of Service condition.
Solutions
ubuntu-pro-upgrade-libruby2-5ubuntu-pro-upgrade-libruby2-7ubuntu-pro-upgrade-libruby3-0ubuntu-pro-upgrade-libruby3-2ubuntu-pro-upgrade-libruby3-3ubuntu-pro-upgrade-ruby-rubygemsubuntu-pro-upgrade-ruby2-5ubuntu-pro-upgrade-ruby2-7ubuntu-pro-upgrade-ruby3-0ubuntu-pro-upgrade-ruby3-2ubuntu-pro-upgrade-ruby3-3
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