SB2021070615 - Multiple vulnerabilities in linuxptp 

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Main Vulnerability Database SB2021070615

SB2021070615 - Multiple vulnerabilities in linuxptp

Published: July 6, 2021

Security Bulletin ID SB2021070615
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2021-3570)

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

The vulnerability exists due to a boundary error when forwarding PTP messages between ports in ptp41 program. A remote attacker can send specially crafted messages to the application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Memory leak (CVE-ID: CVE-2021-3571)

The vulnerability allows a remote attacker to gain access to sensitive information or perform DoS attack on the target system.

The vulnerability exists due memory leak in ptp4l program when processing PTP one-step sync messages. A remote attacker can send specially crafted one-step sync messages to the system, force the application to leak memory and perform denial of service attack or gain access to sensitive information.


Remediation

Install update from vendor's website.

References