CVE-2019-20892

MEDIUM

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.

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/

Details

Source: MITRE

Published: 2020-06-25

Updated: 2020-08-27

Type: CWE-415

Risk Information

CVSS v2.0

Base Score: 4

Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM