CVE-2019-20892

Public Exploit

Description

net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk request. NOTE: this affects net-snmp packages shipped to end users by multiple Linux distributions, but might not affect an upstream release.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.30%
Vendor Advisory ubuntu.com Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027 issue tracking exploit third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1663027 issue tracking exploit third party advisory
https://sourceforge.net/p/net-snmp/bugs/2923/ third party advisory exploit
https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9 third party advisory patch
http://www.openwall.com/lists/oss-security/2020/06/25/4 mailing list exploit third party advisory
https://usn.ubuntu.com/4410-1/ third party advisory vendor advisory
https://security.gentoo.org/glsa/202008-12 third party advisory vendor advisory
https://www.oracle.com/security-alerts/cpujan2021.html third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2019-20892?
CVE-2019-20892 has been scored as a medium severity vulnerability.
How to fix CVE-2019-20892?
To fix CVE-2019-20892, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-20892 being actively exploited in the wild?
It is possible that CVE-2019-20892 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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