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CVE-2014-7975 PUBLISHED

The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.

EPSS 0.07% · 22.0th percentile

Risk Scores

EPSS Score
0.07%
22.0th percentile

Affected Products

VendorProductVersions
Ubuntu:14.04:LTSlinux3.13.0-12.32, 3.13.0-37.64, 3.13.0-39.66
Ubuntu:24.04:LTSlinux-riscv6.8.0-59.61.1, 6.8.0-28.28.1, 6.8.0-31.31.1
Ubuntu:20.04:LTSlinux-raspi25.3.0-1007.8, 5.3.0-1014.16, 5.3.0-1015.17
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75, 0
Ubuntu:24.04:LTSlinux-raspi-realtime6.8.0-2019.20, 0
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1009.10~24.04.1, 6.11.0-1011.12~24.04.1, 6.11.0-1012.13~24.04.1
Ubuntu:22.04:LTSlinux-realtime0, 5.15.0-1032.35
Ubuntu:22.04:LTSlinux-riscv5.15.0-1026.30, 5.15.0-1028.32, 5.15.0-1027.31
Ubuntu:Pro:20.04:LTSlinux-azure-fde-5.155.15.0-1052.60~20.04.1.1, 5.15.0-1053.61~20.04.1.1, 5.15.0-1054.62~20.04.1.1
Ubuntu:18.04:LTSlinux-azure4.15.0-1028.29, 0, 4.15.0-1002.2
Ubuntu:18.04:LTSlinux-hwe-edge5.0.0-16.17~18.04.1, 5.0.0-17.18~18.04.1, 5.0.0-19.20~18.04.1
Ubuntu:18.04:LTSlinux-hwe5.3.0-72.68, 5.3.0-70.66, 5.3.0-28.30~18.04.1
Ubuntu:20.04:LTSlinux-riscv5.4.0-40.45, 5.4.0-39.44, 5.4.0-37.42
Ubuntu:18.04:LTSlinux-gcp4.15.0-1029.31, 4.15.0-1032.34, 4.15.0-1033.35
Ubuntu:24.04:LTSlinux-azure-6.110, 6.11.0-1008.8~24.04.1, 6.11.0-1012.12~24.04.1
Ubuntu:24.04:LTSlinux-hwe-6.110, 6.11.0-17.17~24.04.2, 6.11.0-19.19~24.04.1
Ubuntu:20.04:LTSlinux-gkeop5.4.0-1066.70, 0, 5.4.0-1008.9
Ubuntu:20.04:LTSlinux-gke5.4.0-1076.82, 5.4.0-1105.112, 5.4.0-1104.111
Ubuntu:24.04:LTSlinux-realtime0, 6.8.1-1015.16
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1006.6~24.04.2, 6.11.0-1011.11~24.04.1, 6.11.0-1013.13~24.04.1

…and 1 more

Timeline

References

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