#VU87648 Double Free in Tcpreplay - CVE-2023-4256

Vulnerability identifier: #VU87648

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-4256

CWE-ID: CWE-415

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Tcpreplay
Client/Desktop applications / Other client software

Vendor: AppNeta

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the tcpedit_dlt_cleanup() function in plugins/dlt_plugins.c. A remote attacker can pass specially crafted data to the application, trigger a double free error and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Tcpreplay: 4.4.3 - 4.4.4

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=2255212
https://github.com/appneta/tcpreplay/issues/813
https://github.com/GabrielGanne/tcpreplay/commit/55ad9d1d701e644ed5b8821456e31acf2e72920c

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.