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SUSE: CVE-2014-7975: SUSE Linux Security Advisory

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SUSE: CVE-2014-7975: SUSE Linux Security Advisory

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
10/13/2014
Created
07/25/2018
Added
12/18/2015
Modified
02/24/2021

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.

Solution(s)

  • suse-upgrade-kernel-default

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