CVE-2019-20892

MEDIUM
6.5
CVSS Score
Published: June 25, 2020 at 09:07 AM UTC
Updated: June 17, 2026 at 02:31 AM UTC
2 products affected across 2 vendorsZfs Storage Appliance Kit.NET Snmp

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (8)

Mailing Listx_refsource_MLISTExploitThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/25/4
x_refsource_MISCExploitIssue TrackingThird Party Advisory
https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027
x_refsource_MISCExploitIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1663027
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/202008-12
x_refsource_MISCExploitThird Party Advisory
https://sourceforge.net/p/net-snmp/bugs/2923/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4410-1/
x_refsource_MISCPatchThird Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-415

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