Vulnerability Details CVE-2019-20892
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 66.8%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.0
References
- http://www.openwall.com/lists/oss-security/2020/06/25/4
- https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027
- https://bugzilla.redhat.com/show_bug.cgi?id=1663027
- https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9
- https://security.gentoo.org/glsa/202008-12
- https://sourceforge.net/p/net-snmp/bugs/2923/
- https://usn.ubuntu.com/4410-1/
- https://www.oracle.com/security-alerts/cpujan2021.html
- http://www.openwall.com/lists/oss-security/2020/06/25/4
- https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027
- https://bugzilla.redhat.com/show_bug.cgi?id=1663027
- https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9
- https://security.gentoo.org/glsa/202008-12
- https://sourceforge.net/p/net-snmp/bugs/2923/
- https://usn.ubuntu.com/4410-1/
- https://www.oracle.com/security-alerts/cpujan2021.html
Products affected by CVE-2019-20892
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cpe:2.3:a:net-snmp:net-snmp:5.0
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cpe:2.3:a:net-snmp:net-snmp:5.0.1
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cpe:2.3:a:net-snmp:net-snmp:5.0.2
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cpe:2.3:a:net-snmp:net-snmp:5.0.3
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cpe:2.3:a:net-snmp:net-snmp:5.0.4
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cpe:2.3:a:net-snmp:net-snmp:5.0.5
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cpe:2.3:a:net-snmp:net-snmp:5.0.6
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cpe:2.3:a:net-snmp:net-snmp:5.0.7
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cpe:2.3:a:net-snmp:net-snmp:5.0.8
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cpe:2.3:a:net-snmp:net-snmp:5.0.9
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cpe:2.3:a:net-snmp:net-snmp:5.1
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cpe:2.3:a:net-snmp:net-snmp:5.1.2
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cpe:2.3:a:net-snmp:net-snmp:5.2
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cpe:2.3:a:net-snmp:net-snmp:5.3
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cpe:2.3:a:net-snmp:net-snmp:5.3.0.1
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cpe:2.3:a:net-snmp:net-snmp:5.4
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cpe:2.3:a:net-snmp:net-snmp:5.4.2.1
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cpe:2.3:a:net-snmp:net-snmp:5.5
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cpe:2.3:a:net-snmp:net-snmp:5.6
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cpe:2.3:a:net-snmp:net-snmp:5.7
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cpe:2.3:a:net-snmp:net-snmp:5.7.1
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cpe:2.3:a:net-snmp:net-snmp:5.7.2
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cpe:2.3:a:net-snmp:net-snmp:5.7.3
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cpe:2.3:a:net-snmp:net-snmp:5.8
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cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8