dbcve.org
TcpreplayApplication · Broadcom

CVE-2022-27416

HIGH · 7.8 CVSS v3.1 Published 2022-04-12
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
81/100
Remediation priority · High
Public exploit No privileges Patch available

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
Tcpreplay v4.4.1 was discovered to contain a double-free via __interceptor_free.

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
How this class of weakness works · CWE-415

The same block of memory is freed twice, corrupting the allocator's bookkeeping in ways an attacker can shape toward code execution. It usually stems from tangled ownership of a pointer. The fix is clear, single ownership of each allocation and clearing pointers once they are freed.

General guidance for the double free class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

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
TcpreplayApplication
Affected:= 4.4.1

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
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix Moderate confidence

Tcpreplay 4.4.2 or later stable release

  1. 1. Check the official Tcpreplay GitHub repository (github.com/appneta/tcpreplay) for version 4.4.2 or later releases that address the double-free vulnerability (CVE-2022-27416).
  2. 2. Download the latest stable release from the official Tcpreplay releases page or source repository.
  3. 3. Before installing, backup any existing Tcpreplay configurations and capture files.
  4. 4. Compile and install the new version following the standard build process: ./configure, make, make install (or use system package manager if available).
  5. 5. Verify the installation by running tcpreplay --version to confirm the new version is active.
  6. 6. Test that your typical Tcpreplay workflows function correctly with the updated version.
Caveat Minor - unlikely to break existing workflows as this is a bugfix release, but test in non-production environment first

Generated from the published advisory — verify against the referenced sources before acting.

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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-2022-27416 in production — separate from our analysis above.

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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