Exploit/Advisories

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Ubuntu Security Notice USN-5795-1
January 09, 2023

net-snmp vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Net-SNMP could be made to crash if it received specially crafted network
traffic.

Software Description:
- net-snmp: SNMP (Simple Network Management Protocol) server and applications

Details:

It was discovered that Net-SNMP incorrectly handled certain requests. A
remote attacker could possibly use these issues to cause Net-SNMP to crash,
resulting in a denial of service.

Update instructions:

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

Ubuntu 22.10:
libsnmp40 5.9.3+dfsg-1ubuntu1.2
snmp 5.9.3+dfsg-1ubuntu1.2
snmpd 5.9.3+dfsg-1ubuntu1.2

Ubuntu 22.04 LTS:
libsnmp40 5.9.1+dfsg-1ubuntu2.4
snmp 5.9.1+dfsg-1ubuntu2.4
snmpd 5.9.1+dfsg-1ubuntu2.4

Ubuntu 20.04 LTS:
libsnmp35 5.8+dfsg-2ubuntu2.6
snmp 5.8+dfsg-2ubuntu2.6
snmpd 5.8+dfsg-2ubuntu2.6

Ubuntu 18.04 LTS:
libsnmp30 5.7.3+dfsg-1.8ubuntu3.8
snmp 5.7.3+dfsg-1.8ubuntu3.8
snmpd 5.7.3+dfsg-1.8ubuntu3.8

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5795-1
CVE-2022-44792, CVE-2022-44793

Package Information:
https://launchpad.net/ubuntu/+source/net-snmp/5.9.3+dfsg-1ubuntu1.2
https://launchpad.net/ubuntu/+source/net-snmp/5.9.1+dfsg-1ubuntu2.4
https://launchpad.net/ubuntu/+source/net-snmp/5.8+dfsg-2ubuntu2.6
https://launchpad.net/ubuntu/+source/net-snmp/5.7.3+dfsg-1.8ubuntu3.8

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