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: https://github.com/SegfaultMasters/covering360/tree/master/tcpreplay https://github.com/appneta/tcpreplay/issues/486
Created tcpreplay tracking bugs for this issue: Affects: epel-all [bug 1636599] Affects: fedora-all [bug 1636600]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.