SB2020042851 - Red Hat Enterprise Linux 8 update for tcpdump

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2020042851

SB2020042851 - Red Hat Enterprise Linux 8 update for tcpdump

Published: April 28, 2020 Updated: January 1, 2023

Security Bulletin ID SB2020042851
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Stack-based buffer over-read (CVE-ID: CVE-2018-19519)

CWE-ID: CWE-126 - Buffer over-read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear


The vulnerability allows a remote attacker to obtain potentially sensitive information or cause DoS condition.

The vulnerability exists in the print_prefix function, as defined in the print-hncp.c source code file of the affected software due to insufficient initialization of the buf variable. A remote attacker can trick the victim into execution of the tcpdumpcommand on a .pcap file that submits malicious input, trigger a stack-based buffer overread and access sensitive memory information or cause a DoS condition. 


Remediation

Install update from vendor's website.

References