What is CVE-2023-4256?

CVE-2023-4256 is a medium-severity vulnerability in Fedora Extra Packages For Enterprise Linux, classified under Double Free. CVSS score: 5.5/10. Published 2023-12-21.

How severe is CVE-2023-4256?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2023-4256 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Double Free in Fedora Extra Packages For Enterprise Linux

CVE-2023-4256

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 tcprewri…

Vulnerability class: Double Free

EPSS: 0.000 (1.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Fedora Extra Packages For Enterprise Linux
Fedora
N/a Tcpreplay

Weakness classification (CWE)

CWE-415 — Double Free

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-4256?: CVE-2023-4256 is a medium-severity vulnerability in Fedora Extra Packages For Enterprise Linux, classified under Double Free. CVSS score: 5.5/10. Published 2023-12-21.
How severe is CVE-2023-4256?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2023-4256 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.