PT-2023-9850 · Tcpreplay+4 · Tcpreplay+4

Marsman1996 · Published 2023-03-01 · Updated 2025-02-26 · CVE-2023-27784

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 4.4.3

Description The issue allows a remote attacker to cause a denial of service via the read hexstring function. This is related to a pointer dereference issue in the tcprewrite editor of PCAP files in the Tcpreplay utility. The exploitation of this issue can allow a remote attacker to cause a denial of service.

Recommendations For TCPReplay version 4.4.3, as a temporary workaround, consider disabling the read hexstring function until a patch is available. Restrict access to the utils.c file, specifically the endpoint at line 309, to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2023-6893

BDU:2025-00905

CVE-2023-27784

MGASA-2023-0188

USN-7231-1

Affected Products

Alt Linux

Debian

Linuxmint

Tcpreplay

Ubuntu

References · 29

• 🔥 https://github.com/appneta/tcpreplay/issues/787 · Exploit
• https://ubuntu.com/security/CVE-2023-4256 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UK2BRH3W3ECF5FDXP6QM3ZEDTHIOE4M5 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2023-0188 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-27784 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-27784 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2023-0188.html · Security Note
• https://ubuntu.com/security/CVE-2023-27789 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/UE3J4LKYFNKPKNSLDQK4JG36THQMQH3V · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-27787 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-27784 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R3ER3YTFR3XIDMYEB7LMFWFTPVQALBHC · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-27784 · Security Note
• https://osv.dev/vulnerability/CVE-2023-27784 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-27783 · Vendor Advisory