CVE-2014-2038

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Summary

CVECVE-2014-2038
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-02-28 06:18:54 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe nfs_can_extend_write function in fs/nfs/write.c in the Linux kernel before 3.13.3 relies on a write delegation to extend a write operation without a certain up-to-date verification, which allows local users to obtain sensitive information from kernel memory in opportunistic circumstances by writing to a file in an NFS filesystem and then reading the same file.

Risk And Classification

Primary CVSS: v2.0 2.1 from [email protected]

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

EPSS: 0.000510000 probability, percentile 0.155260000 (date 2026-05-05)

Problem Types: CWE-200 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 13.10 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
USN-2137-1: Linux kernel (Saucy HWE) vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
USN-2140-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
1066939 – (CVE-2014-2038) CVE-2014-2038 kernel: nfs: data leak during extended writes af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Release Notes, Vendor Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
oss-security - Re: Re: CVE request: Linux kernel: nfs: information leakage af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
nfs: always make sure page is up-to-date before extending a write to … · torvalds/linux@263b450 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
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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