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CVE-2017-18078

Description

systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.

Risk Information

Base Score
7.8
MODERATE
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.084

Associated Vulnerability

VulnerabilityOS Platform
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) libsystemd0-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) libsystemd0-32bit-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) libsystemd0-debuginfo-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) libsystemd0-debuginfo-32bit-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) libudev1-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) libudev1-32bit-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) libudev1-debuginfo-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) libudev1-debuginfo-32bit-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) systemd-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) systemd-32bit-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) systemd-bash-completion-228-150.32.1.noarch.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) systemd-debuginfo-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) systemd-debuginfo-32bit-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) systemd-debugsource-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) systemd-sysvinit-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) udev-228-150.32.1.x86_64.rpmLinux
SUSE-SU-2018:0546-1(SUSE Linux Enterprise Desktop 12-SP2 ) udev-debuginfo-228-150.32.1.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234