CVE-2024-3024Public exploit

Local process hang via malformed IPv6 header lengths

Published Mar 28, 2024 · Updated Aug 1, 2024

Infinite loop in Tcpreplay 4.4.0 through 4.4.4 allows local users to hang tcprewrite by processing a crafted IPv6 packet capture. The get_layer4_v6 path advances through IPv6 extension headers without confirming that each declared header length remains within the captured packet. Triggering the flaw requires a local user to run tcprewrite on the crafted file; the demonstrated consequence is nontermination and CPU consumption, not memory corruption.

CVSS severity7.8
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Infinite loop in Tcpreplay 4.4.0 through 4.4.4 allows local users to hang tcprewrite by processing a crafted IPv6 packet capture. The get_layer4_v6 path advances through IPv6 extension headers without confirming that each declared header length remains within the captured packet. Triggering the flaw requires a local user to run tcprewrite on the crafted file; the demonstrated consequence is nontermination and CPU consumption, not memory corruption.

The record

CVE
CVE-2024-3024
Published
Mar 28, 2024
Updated
Aug 1, 2024
Vendor
AppNeta
Product
Tcpreplay
Classifications
CWE-787, CWE-122, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.4.0
  2. Affected versionversion=4.4.0 <=4.4.4
  3. Affected versionversion=4.4.1
  4. Affected versionversion=4.4.2
  5. Affected versionversion=4.4.3
  6. Affected versionversion=4.4.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

AppNeta · Tcpreplayversion=4.4.0; version=4.4.0 <=4.4.4; version=4.4.1; version=4.4.2; version=4.4.3; version=4.4.4

Published CVSS scores

5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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