CVE-2018-17974

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.

• CWE-125

• https://github.com/SegfaultMasters/covering360/tree/master/tcpreplayExploit, Third Party Advisory
• https://github.com/appneta/tcpreplay/issues/486Exploit, Third Party Advisory
• https://github.com/SegfaultMasters/covering360/tree/master/tcpreplayExploit, Third Party Advisory
• https://github.com/appneta/tcpreplay/issues/486Exploit, Third Party Advisory

Published

Oct 3, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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