CVE-2019-20892
published 2020-06-25CVE-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…
PriorityP433medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
2.31%
81.5th percentile
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
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | net-snmp | < net-snmp 5.8+dfsg-3 (bookworm) | net-snmp 5.8+dfsg-3 (bookworm) |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cm1_net-snmp_5.9-3_on_cbl_mariner_1.0 | — | — |
| net-snmp | net-snmp | <= 5.8 | — |
| net-snmp | net-snmp | >= 0 < 5.8+dfsg-3 | 5.8+dfsg-3 |
| net-snmp | net-snmp | >= 0 < 5.8+dfsg-3 | 5.8+dfsg-3 |
| net-snmp | net-snmp | >= 0 < 5.8+dfsg-3 | 5.8+dfsg-3 |
| net-snmp | net-snmp | >= 0 < 5.8+dfsg-3 | 5.8+dfsg-3 |
| net-snmp | net-snmp | >= 0 < 5.8+dfsg-2ubuntu2.1 | 5.8+dfsg-2ubuntu2.1 |
| oracle | zfs_storage_appliance_kit | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu6.5MEDIUM
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Ubuntu
Net-SNMP vulnerability
vendor_ubuntu·2020-07-02·CVSS 6.5
CVE-2019-20892 [MEDIUM] Net-SNMP vulnerability
Title: Net-SNMP vulnerability
Summary: Net-SNMP could be made to crash if it received specially crafted
input.
A double-free bug was discovered in snmpd server. An authenticated user could
potentially cause a DoS by sending a crafted request to the server.
(CVE-2019-20892)
Instructions: After a standard system update you need to restart snmpd to make
all the necessary changes.
Microsoft
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 Lin
vendor_msrc·2020-06-09·CVSS 6.5
CVE-2019-20892 [MEDIUM] CWE-415 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 Lin
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impac
Red Hat
net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request
vendor_redhat·2020-01-02·CVSS 6.5
CVE-2019-20892 [MEDIUM] CWE-416 net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request
net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request
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.
Package: net-snmp (Red Hat Enterprise Linux 5) - Not affected
Package: net-snmp (Red Hat Enterprise Linux 6) - Not affected
Package: net-snmp (Red Hat Enterprise Linux 7) - Not affected
Package: net-snmp (Red Hat Enterprise Linux 9) - Not affected
Debian
CVE-2019-20892: net-snmp - net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in sn...
vendor_debian·2019·CVSS 6.5
CVE-2019-20892 [MEDIUM] CVE-2019-20892: net-snmp - net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in sn...
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.
Scope: local
bookworm: resolved (fixed in 5.8+dfsg-3)
bullseye: resolved (fixed in 5.8+dfsg-3)
forky: resolved (fixed in 5.8+dfsg-3)
sid: resolved (fixed in 5.8+dfsg-3)
trixie: resolved (fixed in 5.8+dfsg-3)
GHSA
GHSA-8q2p-wr8q-hv7c: net-snmp before 5
ghsa_unreviewed·2022-05-24
CVE-2019-20892 [MEDIUM] CWE-415 GHSA-8q2p-wr8q-hv7c: net-snmp before 5
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.
OSV
net-snmp vulnerability
osv·2020-07-02·CVSS 6.5
CVE-2019-20892 [MEDIUM] net-snmp vulnerability
net-snmp vulnerability
A double-free bug was discovered in snmpd server. An authenticated user could
potentially cause a DoS by sending a crafted request to the server.
(CVE-2019-20892)
OSV
CVE-2019-20892: net-snmp before 5
osv·2020-06-25·CVSS 6.5
CVE-2019-20892 [MEDIUM] CVE-2019-20892: net-snmp before 5
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-20892 net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request
bugzilla·2020-06-25·CVSS 6.5
CVE-2019-20892 [MEDIUM] CVE-2019-20892 net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request
CVE-2019-20892 net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request
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.
References:
https://sourceforge.net/p/net-snmp/bugs/2923/
https://bugzilla.redhat.com/show_bug.cgi?id=1663027
Upstream commit:
https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9
Discussion:
Created net-snmp tracking bugs for this issue:
Affects: fedora-all [bug 1851150]
---
This issue has been addressed in Red Hat Enterprise Linux 8 via:
https://access.redhat.com/erra
Bugzilla
CVE-2019-20892 net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request [fedora-all]
bugzilla·2020-06-25·CVSS 6.5
CVE-2019-20892 [MEDIUM] CVE-2019-20892 net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request [fedora-all]
CVE-2019-20892 net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit
http://www.openwall.com/lists/oss-security/2020/06/25/4https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027https://bugzilla.redhat.com/show_bug.cgi?id=1663027https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9https://security.gentoo.org/glsa/202008-12https://sourceforge.net/p/net-snmp/bugs/2923/https://usn.ubuntu.com/4410-1/https://www.oracle.com/security-alerts/cpujan2021.htmlhttp://www.openwall.com/lists/oss-security/2020/06/25/4https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027https://bugzilla.redhat.com/show_bug.cgi?id=1663027https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9https://security.gentoo.org/glsa/202008-12https://sourceforge.net/p/net-snmp/bugs/2923/https://usn.ubuntu.com/4410-1/https://www.oracle.com/security-alerts/cpujan2021.html
2020-06-25
Published