CVE-2019-20892
Net-SNMP Double Free Vulnerability in SNMPv3 GetBulk Request
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.
INFO
Published Date :
June 25, 2020, 10:15 a.m.
Last Modified :
Sept. 2, 2022, 3:31 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2019-20892
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-20892.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/06/25/4 | Exploit Mailing List Third Party Advisory |
| https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027 | Exploit Issue Tracking Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1663027 | Exploit Issue Tracking Third Party Advisory |
| https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9 | Patch Third Party Advisory |
| https://security.gentoo.org/glsa/202008-12 | Third Party Advisory |
| https://sourceforge.net/p/net-snmp/bugs/2923/ | Exploit Third Party Advisory |
| https://usn.ubuntu.com/4410-1/ | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujan2021.html | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-20892 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-20892 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 02, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202008-12 No Types Assigned https://security.gentoo.org/glsa/202008-12 Third Party Advisory Changed Reference Type https://www.oracle.com/security-alerts/cpujan2021.html No Types Assigned https://www.oracle.com/security-alerts/cpujan2021.html Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 20, 2021
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpujan2021.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 27, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202008-12 [No Types Assigned] -
Modified Analysis by [email protected]
Jul. 13, 2020
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://usn.ubuntu.com/4410-1/ No Types Assigned https://usn.ubuntu.com/4410-1/ Third Party Advisory -
CVE Modified by [email protected]
Jul. 06, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4410-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 06, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2020/06/25/4 No Types Assigned http://www.openwall.com/lists/oss-security/2020/06/25/4 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027 No Types Assigned https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1663027 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1663027 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9 No Types Assigned https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9 Patch, Third Party Advisory Changed Reference Type https://sourceforge.net/p/net-snmp/bugs/2923/ No Types Assigned https://sourceforge.net/p/net-snmp/bugs/2923/ Exploit, Third Party Advisory Added CWE NIST CWE-415 Added CPE Configuration OR *cpe:2.3:a:net-snmp:net-snmp:*:*:*:*:*:*:*:* versions up to (including) 5.8 -
CVE Modified by [email protected]
Jun. 25, 2020
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2020/06/25/4 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-20892 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-20892
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.59 }} 0.16%
score
0.78064
percentile