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

🗓️ 16 May 2023 08:31:05Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 5 Views

Device-mapper-multipath mishandles /dev/shm, enabling symlink attacks and local root access.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64device-mapper-multipath0:0.8.4-37.el8device-mapper-multipath-0:0.8.4-37.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64ledevice-mapper-multipath0:0.8.4-37.el8device-mapper-multipath-0:0.8.4-37.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xdevice-mapper-multipath0:0.8.4-37.el8device-mapper-multipath-0:0.8.4-37.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64device-mapper-multipath0:0.8.4-37.el8device-mapper-multipath-0:0.8.4-37.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64device-mapper-multipath-debuginfo0:0.8.4-37.el8device-mapper-multipath-debuginfo-0:0.8.4-37.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64ledevice-mapper-multipath-debuginfo0:0.8.4-37.el8device-mapper-multipath-debuginfo-0:0.8.4-37.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xdevice-mapper-multipath-debuginfo0:0.8.4-37.el8device-mapper-multipath-debuginfo-0:0.8.4-37.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64device-mapper-multipath-debuginfo0:0.8.4-37.el8device-mapper-multipath-debuginfo-0:0.8.4-37.el8.x86_64.rpm
Red Hat Enterprise Linux8anydevice-mapper-multipath-debuginfo0:0.8.4-37.el8.i686device-mapper-multipath-debuginfo-0:0.8.4-37.el8.i686.noarch.rpm
Red Hat Enterprise Linux8aarch64device-mapper-multipath-debugsource0:0.8.4-37.el8device-mapper-multipath-debugsource-0:0.8.4-37.el8.aarch64.rpm
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25 Jun 2026 11:02Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.17.8
EPSS0.00658
device mapper multipathshared memorysymlink attacklocal root accessprivilege escalation
5