CVE-2014-5206

Summary

CVECVE-2014-5206
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-08-18 11:15:00 UTC
Updated2023-11-07 02:20:00 UTC
DescriptionThe do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.

Risk And Classification

Problem Types: CWE-269

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel All All All All

References

ReferenceSourceLinkTags
kernel/git/torvalds/linux.git - Linux kernel source tree CONFIRM git.kernel.org Patch, Vendor Advisory
USN-2318-1: Linux kernel vulnerabilities | Ubuntu UBUNTU www.ubuntu.com Third Party Advisory
Bug 1129662 – CVE-2014-5206 CVE-2014-5207 kernel: mount flags handling during remount CONFIRM bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
mnt: Only change user settable mount flags in remount · torvalds/linux@a6138db · GitHub CONFIRM github.com Patch, Third Party Advisory
git.kernel.org git.kernel.org
Linux Kernel CVE-2014-5206 Local Security Bypass Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
oss-security - Re: CVE Request: ro bind mount bypass using user namespaces MLIST www.openwall.com Mailing List, Third Party Advisory
USN-2317-1: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu UBUNTU www.ubuntu.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 671064 EulerOS Security Update for kernel (EulerOS-SA-2019-2599)
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