Home/CVE/net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk re
CVE

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 re

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.

MEDIUM · CVSS 6.5 EPSS 0.0085
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-415Double Free
▤

Affected Products & Versions

2
net-snmp<= 5.8
oracle zfs storage appliance kitall versions
⚠

Public Exploits & PoCs

3
pocbugs.launchpad.net · 1877027bugs.launchpad.net
pocbugzilla.redhat.com · show_bug.cgi?id=1663027bugzilla.redhat.com
pocsourceforge.net · 2923sourceforge.net
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Jun 2020 · 10:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

3
msrcCVE-2019-20892
usnUSN-4410-1
rhsaRHBA-2020:1376Moderate
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2020/06/25/4ExploitMailing ListThird Party Advisory
https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9PatchThird Party Advisory
https://security.gentoo.org/glsa/202008-12Third Party Advisory
https://usn.ubuntu.com/4410-1/Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.htmlPatchThird Party Advisory
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