SB2020021193 - Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.3 packages

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Main Vulnerability Database SB2020021193

SB2020021193 - Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.3 packages

Published: February 11, 2020 Updated: April 24, 2025

Security Bulletin ID SB2020021193
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2020-7039)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

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


The vulnerability allows an attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the tcp_emu() function in tcp_subr.c in libslirp. An attacker can issue specially crafted IRC DCC commands in EMU_IRC, trigger heap-based buffer overflow and execute arbitrary code on the target system.


2) Path traversal (CVE-ID: CVE-2020-7211)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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


The vulnerability allows an  attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within tftp.c in libslirp. A remote attacker can send a specially crafted TFPT request and read arbitrary files on the Windows system.


Remediation

Install update from vendor's website.

References