CVE-2014-2038

Name: CVE-2014-2038
Creator: NVD / NIST
Published: 2014-02-28T06:18:54.617+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.41%

Last modified Jun 17, 2026

CVE-2014-2038 is a vulnerability of currently unknown severity. The 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.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

The 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.

Metrics

EPSS Probability

0.41%

33.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 3.13.3
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	13.10

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=263b4509ec4d47e0da3e753f85a39ea12d1eff24
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2014/02/20/16Mailing List, Third Party Advisory
http://www.ubuntu.com/usn/USN-2137-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2140-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1066939Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24Patch, Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=263b4509ec4d47e0da3e753f85a39ea12d1eff24
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2014/02/20/16Mailing List, Third Party Advisory
http://www.ubuntu.com/usn/USN-2137-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2140-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1066939Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24Patch, Third Party Advisory

Timeline

Published: Feb 28, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-2038?

How severe is CVE-2014-2038?

Severity scoring for CVE-2014-2038 is pending analysis. The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2014-2038?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-2038?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST