RHSA-2023:2948 - Security Advisory

Topic

An update for device-mapper-multipath is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 device-mapper-multipath packages provide tools that use the device-mapper multipath kernel module to manage multipath devices.

Security Fix(es):

• device-mapper-multipath: multipathd: insecure handling of files in /dev/shm leading to symlink attack (CVE-2022-41973)

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 8.8 Release Notes linked from the References section.

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 x86_64 - Extended Update Support 8.8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.8 ppc64le
• Red Hat Enterprise Linux Server - TUS 8.8 x86_64
• Red Hat Enterprise Linux for ARM 64 8 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.8 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64
• Red Hat CodeReady Linux Builder for x86_64 8 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 8 s390x
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.8 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 8.8 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 8.8 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.8 aarch64

Fixes

• BZ - 2110485 - when running iscsiadm login and quick logout the logout didn't run as expected
• BZ - 2123446 - [RHEL8.4] system hung at Started cancel waiting for multipath siblings of x [rhel-8.8.0]
• BZ - 2123894 - CVE-2022-41973 device-mapper-multipath: multipathd: insecure handling of files in /dev/shm leading to symlink attack
• BZ - 2126714 - Multipath segfault after running newest patched version
• BZ - 2128885 - Race condition causes kpartx to create a dm device which uses itself as part of the target, creating an infinite recursion
• BZ - 2141996 - There is no historical-service-time path selector in multipath.conf man page
• BZ - 2155560 - multipath doesn't verify the argument count in config option strings it passes to the kernel
• BZ - 2166468 - multipath devices that need both a table reload and a rename only get renamed on multipathd startup

CVEs

• CVE-2022-41973

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.8_release_notes/index