CVE-2018-17974 Information

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

https://github.com/appneta/tcpreplay/issues/486 https://github.com/SegfaultMasters/covering360/tree/master/tcpreplay

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5