Improper Input ValidationWeakness · CWE-20

CVE-2024-52337

MEDIUM · 5.5 CVSS v3.1 Published 2024-11-26

Mitigation only

No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.

See remediation →

57/100

Remediation priority · Elevated

Zero-click

Official description

NVD · unedited

A log spoofing flaw was found in the Tuned package due to improper sanitization of some API arguments. This flaw allows an attacker to pass a controlled sequence of characters; newlines can be inserted into the log. Instead of the 'evil' the attacker could mimic a valid TuneD log line and trick the administrator. The quotes '' are usually used in TuneD logs citing raw user input, so there will always be the ' character ending the spoofed input, and the administrator can easily overlook this. This logged string is later used in logging and in the output of utilities, for example, `tuned-adm get_instances` or other third-party programs that use Tuned's D-Bus interface for such operations.

Technical summary

dbcve analysis · high confidence

Tuned package suffers from log spoofing due to improper sanitization of API arguments. An attacker can inject newline characters to mimic valid TuneD log lines, deceiving administrators who may miss the trailing ' character that indicates spoofed input. The flawed log output affects tuned-adm commands and D-Bus interface consumers.

MitigationImplement proper input sanitization for API arguments, escaping or removing newline and special characters before logging. Verify all logging paths including D-Bus interface outputs.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown

From the vector

Attack vector: Local
Complexity: Low
Privileges: Low
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Am I affected?

dbcve checks

Work through these to decide whether this CVE applies to you.

Identify Tuned package version

Run 'rpm -qa tuned' or 'dnf list installed tuned' to find the installed version of the Tuned package

Affected if The installed version matches a vulnerable release of Tuned (compare to upstream security advisories for CVE-2024-52337)
Verify tuned-adm command usage

Check shell history or monitoring logs for usage of 'tuned-adm' commands, as this is one of the logging paths affected by the vulnerability

Affected if tuned-adm commands are executed with user-controlled input that could contain newline characters
Check D-Bus interface exposure

Inspect D-Bus configuration files in /etc/dbus-1/system.d/ and monitor for processes communicating with the org.freedesktop.tuned D-Bus service

Affected if The system exposes or consumes the TuneD D-Bus interface with untrusted input
Examine TuneD logs for anomalies

Review /var/log/tuned/tuned.log and journalctl output for TuneD entries, looking for log lines that appear to have unexpected trailing characters or unusual line breaks that could indicate spoofed entries

Affected if Log entries contain suspicious patterns or show evidence of injected newline characters that could represent log spoofing

The environment is affected if Tuned is installed at a vulnerable version AND (tuned-adm commands process untrusted input OR the D-Bus interface is used with untrusted data), as both paths are vulnerable to log spoofing via newline injection.

Generated from the published advisory. Verify against your own configuration.

Remediation

From vendor data

Mitigation available No clean upgrade yet — mitigate in the meantime

Mitigation

Implement proper input sanitization for API arguments, escaping or removing newline and special characters before logging. Verify all logging paths including D-Bus interface outputs.

Have this fixed Scoped from the published advisory

Consultation4.0 h
Implementation8.0 h
Testing4.0 h
Review / QA2.0 h

18.0 hours of engineering $3,200

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References

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-52337 in production — separate from our analysis above.

Notes0 Guidelines

Know something about CVE-2024-52337?

The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.

The version that genuinely resolved it — not the one the vendor claimed
A config change or rule that shut the vector down
A gotcha in the upgrade path that cost you an afternoon

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here

Verified mitigations, workarounds, and config changes
Version or environment caveats, and links to real fixes
No weaponised exploit code, or anything meant to cause harm
No spam, self-promotion, credentials, or personal data

At a glance

A fix existsA vendor remedy is published

Severity 5.5 Medium

Exploit likelihood EPSS, next 30 days 0.3%

Remediation

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Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

Check your environment

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

Scan for this in your stack

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Practitioner notes

No notes yet

Official description

Technical summary

CVSS breakdown

Am I affected?

Remediation

References