Important: net-snmp security and bug fix update

Synopsis

Important: net-snmp security and bug fix update

Type/Severity

Security Advisory: Important

Topic

An update for net-snmp is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The net-snmp packages provide various libraries and tools for the Simple Network Management Protocol (SNMP), including an SNMP library, an extensible agent, tools for requesting or setting information from SNMP agents, tools for generating and handling SNMP traps, a version of the netstat command which uses SNMP, and a Tk/Perl Management Information Base (MIB) browser.

Security Fix(es):

• net-snmp: Improper Privilege Management in EXTEND MIB may lead to privileged commands execution (CVE-2020-15862)
  

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• In RHEL 8, snmpd using v3 is unable to send out default 60 maxGetbulkResponses when invalid PID specified. (BZ#1896760)
  
• AVC denied for snmpd / snmptrapd (BZ#1902662)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

• BZ - 1873038 - CVE-2020-15862 net-snmp: Improper Privilege Management in EXTEND MIB may lead to privileged commands execution
• BZ - 1896760 - In RHEL 8, snmpd using v3 is unable to send out default 60 maxGetbulkResponses when invalid PID specified. [rhel-8.3.0.z]

CVEs

• CVE-2020-15862

References

• https://access.redhat.com/security/updates/classification/#important