CVE-2013-1957

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Summary

CVECVE-2013-1957
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-04-24 19:55:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe clone_mnt function in fs/namespace.c in the Linux kernel before 3.8.6 does not properly restrict changes to the MNT_READONLY flag, which allows local users to bypass an intended read-only property of a filesystem by leveraging a separate mount namespace.

Risk And Classification

Primary CVSS: v2.0 4.7 from [email protected]

AV:L/AC:M/Au:N/C:C/I:N/A:N

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
None
Availability
None

AV:L/AC:M/Au:N/C:C/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel 3.8.0 All All All
Operating System Linux Linux Kernel 3.8.1 All All All
Operating System Linux Linux Kernel 3.8.2 All All All
Operating System Linux Linux Kernel 3.8.3 All All All
Operating System Linux Linux Kernel 3.8.4 All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
vfs: Carefully propogate mounts across user namespaces · torvalds/linux@132c94e · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
oss-security - Re: Re: Summary of security bugs (now fixed) in user namespaces af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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