PT-2025-37352 · Unknown+2 · Dlt Linuxsll2+4

Published 2025-09-12 · Updated 2025-11-27 · CVE-2025-51006

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions tcpreplay version 4.5.1

Description A double free issue exists within the tcprewrite component of tcpreplay, specifically in the dlt linuxsll2 cleanup() function located in plugins/dlt linuxsll2/linuxsll2.c. This flaw arises when the tcpedit dlt cleanup() function calls the cleanup routine multiple times on the same memory area. Exploitation involves providing a crafted pcap file to the tcprewrite binary, potentially leading to a Denial of Service (DoS) through memory corruption.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Double Free

Weakness Enumeration

CWE-415

Related Identifiers

CVE-2025-51006

OPENSUSE-SU-2025:15728-1

OPENSUSE-SU-2025:20119-1

Affected Products

Debian

Dlt Linuxsll2

Linuxsll2.C

Tcpreplay

Tcprewrite

References · 35

• 🔥 https://github.com/sy460129/CVE-2025-51006 · Exploit
• https://github.com/appneta/tcpreplay/issues/926 · Patch
• https://cve.org/CVERecord?id=CVE-2025-51006 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-51006 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-51006 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15728-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:20119-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-51006 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-51006 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-51006 · Security Note
• https://osv.dev/vulnerability/CVE-2025-51006 · Vendor Advisory
• https://suse.com/security/cve/CVE-2025-8746 · Note
• https://bugzilla.suse.com/1218249 · Note
• https://suse.com/security/cve/CVE-2023-43279 · Note
• https://twitter.com/VulmonFeeds/status/1966529016162054349 · Twitter Post