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CVE-2014-2038

Date: February 27, 2014

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.

Language: C

Severity Score

Related Resources (11)

https://nvd.nist.gov/vuln/detail/CVE-2014-2038
https://github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24
https://bugzilla.redhat.com/show_bug.cgi?id=1066939
http://www.ubuntu.com/usn/USN-2137-1
http://www.openwall.com/lists/oss-security/2014/02/20/16
https://people.canonical.com/~ubuntu-security/cve/CVE-2014-2038
https://access.redhat.com/security/cve/CVE-2014-2038
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3
http://www.ubuntu.com/usn/USN-2140-1
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=263b4509ec4d47e0da3e753f85a39ea12d1eff24
https://www.mend.io/vulnerability-database/CVE-2014-2038

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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