Description
An issue was discovered in Tcpreplay 4.3.0 beta1. A heap-based buffer over-read was triggered in the function dlt_en10mb_encode() of the file plugins/dlt_en10mb/en10mb.c, due to inappropriate values in the function memmove(). The length (pktlen + ctx -> l2len) can be larger than source value (packet + ctx->l2len) because the function fails to ensure the length of a packet is valid. This leads to Denial of Service.
References (2)
Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/appneta/tcpreplay/issues/486
Exploit, Third Party Advisory x_refsource_misc
https://github.com/SegfaultMasters/covering360/tree/master/tcpreplay
Scores
CVSS v3
5.5
EPSS
0.0021
EPSS Percentile
43.8%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (1)
broadcom/tcpreplay
4.3.0 beta1
Published
Oct 03, 2018
Tracked Since
Feb 18, 2026