SB2018070309 - Multiple vulnerabilities in AppNeta Tcpreplay

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Main Vulnerability Database SB2018070309

SB2018070309 - Multiple vulnerabilities in AppNeta Tcpreplay

Published: July 3, 2018 Updated: June 1, 2021

Security Bulletin ID SB2018070309
Severity
High
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2018-17974)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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.


2) Out-of-bounds read (CVE-ID: CVE-2018-17580)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the function fast_edit_packet() in the file send_packets.c of Tcpreplay. This can lead to Denial of Service (DoS) and potentially Information Exposure when the application attempts to process a crafted pcap file. A remote attacker can pass specially crafted data to the application, trigger out-of-bounds read error and read contents of memory on the system.


3) Out-of-bounds read (CVE-ID: CVE-2018-17582)

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

Tcpreplay contains a heap-based buffer over-read. The get_next_packet() function in the send_packets.c file uses the memcpy() function unsafely to copy sequences from the source buffer pktdata to the destination (*prev_packet)->pktdata. This will result in a Denial of Service (DoS) and potentially Information Exposure when the application attempts to process a file.


4) Out-of-bounds read (CVE-ID: CVE-2018-13112)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in get_l2len in common/get.c in Tcpreplay. A remote attacker can perform a denial of service (heap-based buffer over-read and application crash) via crafted packets, as demonstrated by tcpprep.


Remediation

Install update from vendor's website.

References