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Red Hat: RHSA-2021-4361 Moderate: NetworkManager Network Reconfig Issue

red hat
Calendar Grey November 9, 2021
Dist Redhat Esm H88
Red Hat issued a significant security patch for NetworkManager to fix serious network configuration vulnerabilities.
An update for NetworkManager is now available for Red Hat Enterprise Linux 8

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

NetworkManager is a system network service that manages network devices and connections, attempting to keep active network connectivity when available. Its capabilities include managing Ethernet, wireless, mobile broadband (WWAN), and PPPoE devices, as well as providing VPN integration with a variety of different VPN services.
The following packages have been upgraded to a later upstream version: NetworkManager (1.32.10). (BZ#1934465)
Security Fix(es):
* systemd: DHCP FORCERENEW authentication not implemented can cause a system running the DHCP client to have its network reconfigured (CVE-2020-13529)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate red hat bug fix networkmanager systemd network reconfiguration

References

https://access.redhat.com/security/cve/CVE-2020-13529 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.5_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: NetworkManager-adsl-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-bluetooth-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-cloud-setup-1.32.10-4.el8.aarch64.rpm NetworkManager-cloud-setup-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-debugsource-1.32.10-4.el8.aarch64.rpm NetworkManager-libnm-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-ovs-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-ppp-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-team-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-tui-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-wifi-debuginfo-1.32.10-4.el8.aarch64.rpm NetworkManager-wwan-debuginfo-1.32.10-4.el8.aarch64.rpm
ppc64le: NetworkManager-adsl-debuginfo-1.32.10-4.el8.ppc64le.rpm NetworkManager-bluetooth-debuginfo-1.32.10-4.el8.ppc64le.rpm NetworkManager-cloud-setup-1.32.10-4.el8.ppc64le.rpm NetworkManager-cloud-setup-debuginfo-1.32.10-4.el8.ppc64le.rpm NetworkManager-debuginfo-1.32.10-4.el8.ppc64le.rpm NetworkManager-debugsource-1.32.10-4.el8.ppc64le.rpm NetworkManager-libnm-debuginfo-1.32.10-4.el8.ppc64le.rpm NetworkManager-ovs-debuginfo-1.32.10-4.el8.ppc64le.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:4361-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4361
Issue date: 2021-11-09

Topic

An update for NetworkManager is now available for Red Hat Enterprise Linux8.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.

Topics%20covered

Topics Covered

security advisory moderate red hat bug fix networkmanager systemd network reconfiguration

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Red Hat Enterprise Linux CRB (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1791212 - [Azure][RHEL8][RFE] add a secondary ip to the primary/first interface of a redhat instance automatically when the change is applied on the infrastructure side

1820770 - Keepalived assignment of a deprecated IPv6 Virtual IP triggers "set hostname"

1825666 - ipv6 nfs mount point does not mount automatically at boot, remote-fs-pre.target starts too early and conflicts with network start up

1832112 - Document the type of each LLDP attribute of libnm

1832273 - LLDP: add lldp status device property

1847125 - [RFE] Improve 20% performance on creating 1000 bridge over 1000 VLANs

1847894 - Describe qdiscs and tfilters in nm-settings manpage

1852317 - [RFE] Ability to report DNS_SEARCH field via nmcli

1890234 - NetworkManager behavior for bonds + mtu changes from 8.1 to 8.2

1899372 - [RFE] Support pause parameters of ethtool [rhel-8]

1907960 - Cannot create VLAN interface with name `vlan0`

1912236 - [Azure][RHEL-8.5] nm-cloud-setup.service makes network connectivity loss

1912423 - [NMCI] [abrt] [faf] NetworkManager: raise(): /usr/sbin/NetworkManager killed by 6

1915276 - crash when deleting veth device profile

1915278 - null error when deleting veth device

1928078 - Provide a way to ignore existing TC qdiscs and filters1933719 - [abrt] [faf] NetworkManager: _g_log_abort(): /usr/sbin/NetworkManager killed by 5

1934122 - nmcli shows 2 connections when using an ip argument in the kernel cmdline

Read the Full Advisory

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