Bug 1851145 (CVE-2019-20892) - CVE-2019-20892 net-snmp: double free in usm_free_usmStateReference function in snmplib/snmpusm.c via an SNMPv3 GetBulk request
Summary: CVE-2019-20892 net-snmp: double free in usm_free_usmStateReference function i...
Keywords:
Status: NEW
Alias: CVE-2019-20892
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1802055 1851150 1882249 1910626
Blocks: 1851146
TreeView+ depends on / blocked
 
Reported: 2020-06-25 16:46 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-05-17 10:24 UTC (History)
4 users (show)

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Description Guilherme de Almeida Suckevicz 2020-06-25 16:46:10 UTC
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

Comment 1 Guilherme de Almeida Suckevicz 2020-06-25 16:47:41 UTC
Created net-snmp tracking bugs for this issue:

Affects: fedora-all [bug 1851150]

Comment 2 Huzaifa S. Sidhpurwala 2020-07-06 04:08:54 UTC
This issue has been addressed in Red Hat Enterprise Linux 8 via:

https://access.redhat.com/errata/RHBA-2020:1376


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