SARA / Free Tools / CVE / CVE-2023-4256

CVE-2023-4256 — Within tcpreplay's tcprewrite, a double free vulnerability has been identified i

Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the tcpedit_dlt_cleanup() function within plugins/dlt_plugins.c. This vulnerability can be exploited by supplying a specifically crafted file to the tcprewrite binary. This flaw enables a local

CVSS
5.5 MEDIUM
EPSS
0.02% (top 95.30%)
CWE
CWE-415
Published
2023-12-21T16:03:21.837Z
Last modified
2025-02-13T17:09:26.781Z
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

01What is this vulnerability?

Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the tcpedit_dlt_cleanup() function within plugins/dlt_plugins.c. This vulnerability can be exploited by supplying a specifically crafted file to the tcprewrite binary. This flaw enables a local attacker to initiate a Denial of Service (DoS) attack.

02Affected products

VendorProductVersions
na / tcpreplayunspecified
FedoraExtra Packages for Enterprise Linuxunspecified
FedoraFedoraunspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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