DescriptionThe 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.
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
|National Vulnerability Database|
- openSUSE-SU-2014:1677-1, published Sun, 21 Dec 2014 13:04:41 +0100 (CET)
List of released packages
|Product(s)||Fixed package version(s)||References|
|openSUSE 13.1|| ||Patchnames:
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.
|SUSE Linux Enterprise Desktop 11 SP3||kernel-source||Not affected|
|SUSE Linux Enterprise Server 11 SP3||kernel-source||Not affected|
|SUSE Linux Enterprise Server for VMWare 11 SP3||kernel-source||Not affected|