#VU29535 Double Free in Net-snmp - CVE-2019-20892

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Main Vulnerability Database Vulnerabilities #VU29535

#VU29535 Double Free in Net-snmp - CVE-2019-20892

Published: July 6, 2020 / Updated: September 8, 2020


Vulnerability identifier: #VU29535
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-20892
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Net-snmp
Software vendor:
net-snmp.sourceforge.net

Description

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

The vulnerability exists due to a boundary error when processing an SNMPv3 GetBulk request in usm_free_usmStateReference in snmplib/snmpusm.c in net-snmp. A remote attacker can pass specially crafted data to the application, trigger double free error and execute arbitrary code on the target system.

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


Remediation

Install updates from vendor's website.

External links