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Acpi SupportApplication · Canonical

CVE-2014-1419

MEDIUM · 6.9 CVSS v2.0 Published 2014-07-24
Fix available
A fix is available. Upgrade to after 0.141 or later.
See remediation →
74/100
Remediation priority · Elevated
No privileges Zero-click

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.

NVD · unedited
Race condition in the power policy functions in policy-funcs in acpi-support before 0.142 allows local users to gain privileges via unspecified vectors.

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.

dbcve analysis · moderate confidence

Race condition in the power policy functions in policy-funcs in acpi-support before version 0.142 allows local users to gain privileges. The vulnerability is a time-of-check to time-of-use (TOCTOU) issue in ACPI power management code where an attacker could exploit a timing window to escalate privileges to root.

MitigationUpgrade acpi-support to version 0.142 or later to patch the race condition vulnerability in the power policy functions.

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

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Acpi SupportApplication
Affected:<= 0.141
Ubuntu LinuxOperating system
Affected:= 12.04

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.

From the vector
Attack vector
Local
Complexity
M
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:M/Au:N/C:C/I:C/A:C

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.

dbcve checks

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

  1. Confirm acpi-support package is installed
    Run `dpkg -l acpi-support` or `dpkg -s acpi-support` to check if the package is present on the system
    Affected if Package is not installed - the vulnerability does not apply
  2. Check installed acpi-support version
    Run `dpkg -l | grep acpi-support` or `apt-cache policy acpi-support` to obtain the exact version number installed
    Affected if Version is 0.141 or lower, indicating the vulnerable code is present
  3. Verify Ubuntu 12.04 release
    Run `lsb_release -r` or check `/etc/lsb-release` to confirm the Ubuntu version
    Affected if System is Ubuntu 12.04 and acpi-support version is 0.141 or lower - both conditions must match for full CVE applicability
  4. Locate policy-funcs file
    Check for the presence of policy-funcs in paths such as `/usr/lib/pm-utils/policy-funcs` or search with `find /usr -name policy-funcs 2>/dev/null`
    Affected if The file exists in the expected location - indicates the vulnerable power policy code is in use

System is affected if it runs Ubuntu 12.04 with acpi-support version 0.141 or lower, where the policy-funcs file containing the TOCTOU race condition is present.

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

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

From vendor data
Upgrade available Upgrade to a release after 0.141
Interim mitigation

Upgrade acpi-support to version 0.142 or later to patch the race condition vulnerability in the power policy functions.

Fix this in Acpi Support Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

Scan for this in your stack

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

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2014-1419 in production — separate from our analysis above.

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