CVE-2018-17974

 

Published at: - 04-10-2018 12:29

Last modified: - 02-04-2022 05:30

Total changes: - 2

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.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

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

 

Keywords

NVD

 

CVE-2018-17974

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures