CVE-2023-4256

Public Exploit
Tcpreplay: tcprewrite: double free in tcpedit_dlt_cleanup() in plugins/dlt_plugins.c

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory redhat.com Third-Party Advisory github.com
Affected: n/a tcpreplay
Affected: Fedora Extra Packages for Enterprise Linux
Affected: Fedora Fedora
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2255212 third party advisory issue tracking exploit
https://github.com/appneta/tcpreplay/issues/813 third party advisory issue tracking exploit
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V3GYCHPVJ2VFN3D7FI4IRMDVMILLWBRF/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TMW5CIODKRHUUH7NTAYIRWGSJ56DTGXM/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EHUILQV2YJI5TXXXJA5FQ2HJQGFT7NTN/

Frequently Asked Questions

What is the severity of CVE-2023-4256?
CVE-2023-4256 has been scored as a medium severity vulnerability.
How to fix CVE-2023-4256?
To fix CVE-2023-4256, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4256 being actively exploited in the wild?
It is possible that CVE-2023-4256 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4256?
CVE-2023-4256 affects n/a tcpreplay, Fedora Extra Packages for Enterprise Linux, Fedora Fedora.
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