PT-2023-9853 · Tcpreplay+3 · Tcpreplay+3

Timchan2001 · Published 2023-09-13 · Updated 2025-11-27 · CVE-2023-43279

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Tcpreplay version 4.4.4

Description The issue is related to a null pointer dereference in the mask cidr6 component at cidr.c in Tcpreplay. This allows attackers to crash the application via a crafted tcprewrite command, potentially leading to a denial of service. The vulnerability can be exploited by a remote attacker.

Recommendations For Tcpreplay version 4.4.4, consider disabling the mask cidr6 function until a patch is available to prevent potential crashes via crafted commands. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-00943

CVE-2023-43279

MGASA-2024-0098

OPENSUSE-SU-2025:20119-1

USN-7231-1

Affected Products

Debian

Linuxmint

Tcpreplay

Ubuntu

References · 55

• 🔥 https://github.com/appneta/tcpreplay/issues/824 · Exploit
• https://ubuntu.com/security/CVE-2023-4256 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EHUILQV2YJI5TXXXJA5FQ2HJQGFT7NTN · Vendor Advisory
• https://osv.dev/vulnerability/USN-7231-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-43279 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-43279 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-27788 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-43279 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-43279 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-27789 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7231-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMW5CIODKRHUUH7NTAYIRWGSJ56DTGXM · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-00943 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3GYCHPVJ2VFN3D7FI4IRMDVMILLWBRF · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:20119-1 · Vendor Advisory