RedHat: RHSA-2020-2539:01 Moderate: net-snmp security and bug fix update
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: NULL pointer exception in snmp_oid_compare in
snmplib/snmp_api.c resulting in a denial of service (CVE-2018-18066)
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):
* snmpd crashes due to double-free when freeing security context
(BZ#1812938)
* net-snmp memory leak (BZ#1832223)
Summary
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
References
https://access.redhat.com/security/cve/CVE-2018-18066 https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):
Source:
net-snmp-5.7.2-43.el7_7.6.src.rpm
x86_64:
net-snmp-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.i686.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.i686.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-libs-5.7.2-43.el7_7.6.i686.rpm
net-snmp-libs-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-utils-5.7.2-43.el7_7.6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):
x86_64:
net-snmp-debuginfo-5.7.2-43.el7_7.6.i686.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-devel-5.7.2-43.el7_7.6.i686.rpm
net-snmp-devel-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-gui-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-perl-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-python-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-sysvinit-5.7.2-43.el7_7.6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.7):
Source:
net-snmp-5.7.2-43.el7_7.6.src.rpm
ppc64:
net-snmp-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.ppc.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.ppc.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-devel-5.7.2-43.el7_7.6.ppc.rpm
net-snmp-devel-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-libs-5.7.2-43.el7_7.6.ppc.rpm
net-snmp-libs-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-utils-5.7.2-43.el7_7.6.ppc64.rpm
ppc64le:
net-snmp-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-devel-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-libs-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-utils-5.7.2-43.el7_7.6.ppc64le.rpm
s390x:
net-snmp-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.s390.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.s390.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-devel-5.7.2-43.el7_7.6.s390.rpm
net-snmp-devel-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-libs-5.7.2-43.el7_7.6.s390.rpm
net-snmp-libs-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-utils-5.7.2-43.el7_7.6.s390x.rpm
x86_64:
net-snmp-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.i686.rpm
net-snmp-agent-libs-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.i686.rpm
net-snmp-debuginfo-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-devel-5.7.2-43.el7_7.6.i686.rpm
net-snmp-devel-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-libs-5.7.2-43.el7_7.6.i686.rpm
net-snmp-libs-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-utils-5.7.2-43.el7_7.6.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.7):
ppc64:
net-snmp-debuginfo-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-gui-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-perl-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-python-5.7.2-43.el7_7.6.ppc64.rpm
net-snmp-sysvinit-5.7.2-43.el7_7.6.ppc64.rpm
ppc64le:
net-snmp-debuginfo-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-gui-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-perl-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-python-5.7.2-43.el7_7.6.ppc64le.rpm
net-snmp-sysvinit-5.7.2-43.el7_7.6.ppc64le.rpm
s390x:
net-snmp-debuginfo-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-gui-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-perl-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-python-5.7.2-43.el7_7.6.s390x.rpm
net-snmp-sysvinit-5.7.2-43.el7_7.6.s390x.rpm
x86_64:
net-snmp-debuginfo-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-gui-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-perl-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-python-5.7.2-43.el7_7.6.x86_64.rpm
net-snmp-sysvinit-5.7.2-43.el7_7.6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for net-snmp is now available for Red Hat Enterprise Linux 7.7Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.7) - ppc64, ppc64le, s390x, x86_64
Bugs Fixed
1637572 - CVE-2018-18066 net-snmp: NULL pointer exception in snmp_oid_compare in snmplib/snmp_api.c resulting in a denial of service
1812938 - snmpd crashes due to double-free when freeing security context [rhel-7.7.z]
1832223 - net-snmp memory leak [rhel-7.7.z]