Exploit/Advisories

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Ubuntu Security Notice USN-5795-2
January 16, 2023

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in Net-SNMP.

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

Details:

USN-5795-1 and 5543-1 fixed several vulnerabilities in Net-SNMP. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory 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.

Yu Zhang and Nanyu Zhong discovered that Net-SNMP incorrectly handled
memory operations when processing certain requests. A remote attacker could
use this issue to cause Net-SNMP to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 16.04 ESM:
libsnmp30 5.7.3+dfsg-1ubuntu4.6+esm1
snmp 5.7.3+dfsg-1ubuntu4.6+esm1
snmpd 5.7.3+dfsg-1ubuntu4.6+esm1

Ubuntu 14.04 ESM:
libsnmp30 5.7.2~dfsg-8.1ubuntu3.3+esm3
snmp 5.7.2~dfsg-8.1ubuntu3.3+esm3
snmpd 5.7.2~dfsg-8.1ubuntu3.3+esm3

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

References:
https://ubuntu.com/security/notices/USN-5795-2
https://ubuntu.com/security/notices/USN-5795-1
CVE-2022-24805, CVE-2022-24806, CVE-2022-24807, CVE-2022-24808,
CVE-2022-24809, CVE-2022-24810, CVE-2022-44792, CVE-2022-44793

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