UBUNTU-CVE-2026-26076

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Source

https://ubuntu.com/security/CVE-2026-26076

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26076.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-26076

Upstream

CVE-2026-26076

Published

2026-02-12T22:16:00Z

Modified

2026-02-28T06:13:00.384401Z

Severity

6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

ntpd-rs is a full-featured implementation of the Network Time Protocol. Prior to 1.7.1, an attacker can remotely induce moderate increases (2-4 times above normal) in cpu usage. When having NTS enabled on an ntpd-rs server, an attacker can create malformed NTS packets that take significantly more effort for the server to respond to by requesting a large number of cookies. This can lead to degraded server performance even when a server could otherwise handle the load. This vulnerability is fixed in 1.7.1.

References

Affected packages

Ubuntu:24.04:LTS / rust-ntpd

Package

Name: rust-ntpd
Purl: pkg:deb/ubuntu/rust-ntpd@1.1.2-1?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.0.0-5

1.1.0-2

1.1.0-3

1.1.1-1

1.1.1-2

1.1.2-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.1.2-1",
            "binary_name": "librust-ntpd-dev"
        },
        {
            "binary_version": "1.1.2-1",
            "binary_name": "ntpd-rs"
        },
        {
            "binary_version": "1.1.2-1",
            "binary_name": "ntpd-rs-metrics"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-26076.json"

Ubuntu:25.10 / rust-ntpd