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Red Hat Enterprise Linux 9 RHSA-2023-2459-01 Moderate Symlink Attack

red hat
Calendar Grey May 9, 2023
Dist Redhat Esm H88
The latest device-mapper-multipath update for Red Hat 9 addresses moderate security issues and fixes a critical bug, enhancing stability and performance for users
An update for device-mapper-multipath is now available for Red Hat Enterprise Linux 9

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 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 9.2 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Enterprise Linux symlink attack device-mapper-multipath

References

https://access.redhat.com/security/cve/CVE-2022-41973 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.2_release_notes/index

Package List

Red Hat Enterprise Linux BaseOS (v. 9):
Source: device-mapper-multipath-0.8.7-20.el9.src.rpm
aarch64: device-mapper-multipath-0.8.7-20.el9.aarch64.rpm device-mapper-multipath-debuginfo-0.8.7-20.el9.aarch64.rpm device-mapper-multipath-debugsource-0.8.7-20.el9.aarch64.rpm device-mapper-multipath-libs-0.8.7-20.el9.aarch64.rpm device-mapper-multipath-libs-debuginfo-0.8.7-20.el9.aarch64.rpm kpartx-0.8.7-20.el9.aarch64.rpm kpartx-debuginfo-0.8.7-20.el9.aarch64.rpm libdmmp-debuginfo-0.8.7-20.el9.aarch64.rpm
ppc64le: device-mapper-multipath-0.8.7-20.el9.ppc64le.rpm device-mapper-multipath-debuginfo-0.8.7-20.el9.ppc64le.rpm device-mapper-multipath-debugsource-0.8.7-20.el9.ppc64le.rpm device-mapper-multipath-libs-0.8.7-20.el9.ppc64le.rpm device-mapper-multipath-libs-debuginfo-0.8.7-20.el9.ppc64le.rpm kpartx-0.8.7-20.el9.ppc64le.rpm kpartx-debuginfo-0.8.7-20.el9.ppc64le.rpm libdmmp-debuginfo-0.8.7-20.el9.ppc64le.rpm
s390x: device-mapper-multipath-0.8.7-20.el9.s390x.rpm device-mapper-multipath-debuginfo-0.8.7-20.el9.s390x.rpm device-mapper-multipath-debugsource-0.8.7-20.el9.s390x.rpm device-mapper-multipath-libs-0.8.7-20.el9.s390x.rpm device-mapper-multipath-libs-debuginfo-0.8.7-20.el9.s390x.rpm kpartx-0.8.7-20.el9.s390x.rpm kpartx-debuginfo-0.8.7-20.el9.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:2459-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:2459
Issue date: 2023-05-09

Topic

An update for device-mapper-multipath is now available for Red HatEnterprise Linux 9.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 Enterprise Linux symlink attack device-mapper-multipath

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 9) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux CRB (v. 9) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2123894 - CVE-2022-41973 device-mapper-multipath: multipathd: insecure handling of files in /dev/shm leading to symlink attack

2125357 - when running iscsiadm login and quick logout the logout didn't run as expected

2141860 - Race condition causes kpartx to create a dm device which uses itself as part of the target, creating an infinite recursion

2143125 - path selector "io-affinity" does not work on RHEL9.2

2145225 - multipath doesn't verify the argument count in config option strings it passes to the kernel

2166467 - multipath devices that need both a table reload and a rename only get renamed on multipathd startup

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