SB2020082415 - Ubuntu update for net-snmp

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Main Vulnerability Database SB2020082415

SB2020082415 - Ubuntu update for net-snmp

Published: August 24, 2020 Updated: April 23, 2025

Security Bulletin ID SB2020082415
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

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

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) UNIX symbolic link following (CVE-ID: CVE-2020-15861)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue in snmpd. A local user can bypass implemented security mechanism via *snmp-mibs-downloader package* and execute arbitrary commands on the system as root.


2) Incorrect permission assignment for critical resource (CVE-ID: CVE-2020-15862)

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to insecure permissions set by the Net-snmp installed on Debian-based systems. A remote user can overwrite files in net-snmp directory via EXTEND MIB and execute arbitrary code on the system with root privileges.


Remediation

Install update from vendor's website.

References