1. Ubuntu Security Notices
  2. USN-4471-1

USN-4471-1: Net-SNMP vulnerabilities

Publication date

24 August 2020

Overview

Several security issues were fixed in Net-SNMP.

Releases

Packages

  • net-snmp - SNMP (Simple Network Management Protocol) server and applications

Details

Tobias Neitzel discovered that Net-SNMP incorrectly handled certain symlinks.
An attacker could possibly use this issue to access sensitive information.
(CVE-2020-15861)

It was discovered that Net-SNMP incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.
This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 LTS, Ubuntu
18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2020-15862)

Tobias Neitzel discovered that Net-SNMP incorrectly handled certain symlinks.
An attacker could possibly use this issue to access sensitive information.
(CVE-2020-15861)

It was discovered that Net-SNMP incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.
This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 LTS, Ubuntu
18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2020-15862)

Update instructions

After a standard system update you need to restart snmpd to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
20.04 focal libsnmp-base –  5.8+dfsg-2ubuntu2.3
libsnmp-perl –  5.8+dfsg-2ubuntu2.3
libsnmp35 –  5.8+dfsg-2ubuntu2.3
snmpd –  5.8+dfsg-2ubuntu2.3
18.04 bionic libsnmp-base –  5.7.3+dfsg-1.8ubuntu3.5
libsnmp-perl –  5.7.3+dfsg-1.8ubuntu3.5
libsnmp30 –  5.7.3+dfsg-1.8ubuntu3.5
snmpd –  5.7.3+dfsg-1.8ubuntu3.5
16.04 xenial libsnmp-base –  5.7.3+dfsg-1ubuntu4.5
libsnmp-perl –  5.7.3+dfsg-1ubuntu4.5
libsnmp30 –  5.7.3+dfsg-1ubuntu4.5
snmpd –  5.7.3+dfsg-1ubuntu4.5
14.04 trusty libsnmp-base –  5.7.2~dfsg-8.1ubuntu3.3+esm1
libsnmp-perl –  5.7.2~dfsg-8.1ubuntu3.3+esm1
libsnmp30 –  5.7.2~dfsg-8.1ubuntu3.3+esm1
snmpd –  5.7.2~dfsg-8.1ubuntu3.3+esm1
12.04 precise libsnmp-base –  5.4.3~dfsg-2.4ubuntu1.5
libsnmp-perl –  5.4.3~dfsg-2.4ubuntu1.5
libsnmp15 –  5.4.3~dfsg-2.4ubuntu1.5
snmpd –  5.4.3~dfsg-2.4ubuntu1.5

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References

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