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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.31% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.9% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-06-25 09:07Z6 YR AGO
- Last updated
- 2024-08-05 02:53Z2 YR AGO
- Reserved
- 2020-06-25
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 7619ec9f43ece481ee95b12ee12d8ef184ab3f34f7e7e2e8a5e0eff0473a527b
05 Affected products
06 References
- bugs.launchpad.nethttps://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1663027
- sourceforge.nethttps://sourceforge.net/p/net-snmp/bugs/2923/
- github.comhttps://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9
- www.openwall.com[oss-security] 20200625 [cve-request@...re.org: Re: [scr916814] net-snmp - Perhaps only unreleased development versions; fix appears to be in v5.8.1.pre1]http://www.openwall.com/lists/oss-security/2020/06/25/4
- usn.ubuntu.comUSN-4410-1https://usn.ubuntu.com/4410-1/
- security.gentoo.orgGLSA-202008-12https://security.gentoo.org/glsa/202008-12
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2021.html
07 Fixed in
Debian 12
- net-snmp Fixed in 5.8+dfsg-3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- net-snmp Fixed in 5.8+dfsg-3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- net-snmp Fixed in 5.8+dfsg-3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- net-snmp Fixed in 5.8+dfsg-2ubuntu2.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.