CVE-2014-5207

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Summary

CVECVE-2014-5207
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
Descriptionfs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled 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

References

ReferenceSourceLinkTags
Linux Kernel 3.16.1 - Remount FUSE Exploit EXPLOIT-DB www.exploit-db.com Exploit, Third Party Advisory, VDB Entry
Linux Kernel 3.16.1 FUSE Privilege Escalation ≈ Packet Storm MISC packetstormsecurity.com Exploit, Third Party Advisory, VDB Entry
kernel/git/torvalds/linux.git - Linux kernel source tree CONFIRM git.kernel.org Patch, Vendor Advisory
oss-sec: CVE Request: ro bind mount bypass using user namespaces MLIST seclists.org Mailing List, Third Party Advisory
mnt: Correct permission checks in do_remount · torvalds/linux@9566d67 · GitHub CONFIRM github.com Patch, Third Party Advisory
USN-2318-1: Linux kernel vulnerabilities | Ubuntu UBUNTU www.ubuntu.com Third Party Advisory
110055 OSVDB osvdb.org Broken Link
Bug 1129662 – CVE-2014-5206 CVE-2014-5207 kernel: mount flags handling during remount CONFIRM bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree git.kernel.org
IBM X-Force Exchange XF exchange.xforce.ibmcloud.com Third Party Advisory, VDB Entry
Linux Kernel CVE-2014-5207 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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