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Red Hat Enterprise Linux 7.6 RHSA-2021-0358-01 Critical: Net-Snmp Exploit

red hat
Calendar Grey February 2, 2021
Dist Redhat Esm H88
Critical patch released for net-snmp in RHEL 7.6. Discover the vulnerabilities involved and how to mitigate them.
An update for net-snmp is now available for Red Hat Enterprise Linux 7.6 Extended Update Support

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

Summary

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.

Topics%20covered

Topics Covered

security advisory security issue red hat critical software update privilege escalation exploit Red Hat Enterprise Linux important net-snmp privilege management

References

https://access.redhat.com/security/cve/CVE-2020-15862 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6):
Source: net-snmp-5.7.2-38.el7_6.3.src.rpm
x86_64: net-snmp-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-agent-libs-5.7.2-38.el7_6.3.i686.rpm net-snmp-agent-libs-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-debuginfo-5.7.2-38.el7_6.3.i686.rpm net-snmp-debuginfo-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-libs-5.7.2-38.el7_6.3.i686.rpm net-snmp-libs-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-utils-5.7.2-38.el7_6.3.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):
x86_64: net-snmp-debuginfo-5.7.2-38.el7_6.3.i686.rpm net-snmp-debuginfo-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-devel-5.7.2-38.el7_6.3.i686.rpm net-snmp-devel-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-gui-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-perl-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-python-5.7.2-38.el7_6.3.x86_64.rpm net-snmp-sysvinit-5.7.2-38.el7_6.3.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.6):
Source: net-snmp-5.7.2-38.el7_6.3.src.rpm
ppc64: net-snmp-5.7.2-38.el7_6.3.ppc64.rpm net-snmp-agent-libs-5.7.2-38.el7_6.3.ppc.rpm net-snmp-agent-libs-5.7.2-38.el7_6.3.ppc64.rpm net-snmp-debuginfo-5.7.2-38.el7_6.3.ppc.rpm net-snmp-debuginfo-5.7.2-38.el7_6.3.ppc64.rpm net-snmp-devel-5.7.2-38.el7_6.3.ppc.rpm net-snmp-devel-5.7.2-38.el7_6.3.ppc64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:0358-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0358
Issue date: 2021-02-02

Topic

An update for net-snmp is now available for Red Hat Enterprise Linux 7.6Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security issue red hat critical software update privilege escalation exploit Red Hat Enterprise Linux important net-snmp privilege management

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) - x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

Bugs Fixed

1873038 - CVE-2020-15862 net-snmp: Improper Privilege Management in EXTEND MIB may lead to privileged commands execution

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