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CVE-2014-7975
Published: Oct 13, 2014
Modified: Aug 6, 2024
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
USN-2418-1
vendor-advisory
x_refsource_UBUNTU
61145
third-party-advisory
x_refsource_SECUNIA
linux-kernel-cve20147975-dos(96994)
vdb-entry
x_refsource_XF
USN-2416-1
vendor-advisory
x_refsource_UBUNTU
USN-2417-1
vendor-advisory
x_refsource_UBUNTU
USN-2415-1
vendor-advisory
x_refsource_UBUNTU
USN-2419-1
vendor-advisory
x_refsource_UBUNTU
1031180
vdb-entry
x_refsource_SECTRACK
60174
third-party-advisory
x_refsource_SECUNIA
USN-2421-1
vendor-advisory
x_refsource_UBUNTU
USN-2420-1
vendor-advisory
x_refsource_UBUNTU
RHSA-2017:2077
vendor-advisory
x_refsource_REDHAT
RHSA-2017:1842
vendor-advisory
x_refsource_REDHAT
62633
third-party-advisory
x_refsource_SECUNIA
[oss-security] 20141008 CVE-2014-7975: 0-day umount denial of service
mailing-list
x_refsource_MLIST
62634
third-party-advisory
x_refsource_SECUNIA
[stable] 20141008 [PATCH] fs: Add a missing permission check to do_umount
mailing-list
x_refsource_MLIST
70314
vdb-entry
x_refsource_BID
https://bugzilla.redhat.com/show_bug.cgi?id=1151108
x_refsource_CONFIRM
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