Permissions, Privileges, and Access Controls in Linux kernel - CVE-2014-1738

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Main Vulnerability Database Vulnerabilities #VU41702

Permissions, Privileges, and Access Controls in Linux kernel - CVE-2014-1738

Published: May 12, 2014 / Updated: August 10, 2020


Vulnerability identifier: #VU41702
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-1738
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The raw_cmd_copyout function in drivers/block/floppy.c in the Linux kernel through 3.14.3 does not properly restrict access to certain pointers during processing of an FDRAWCMD ioctl call, which allows local users to obtain sensitive information from kernel heap memory by leveraging write access to a /dev/fd device.


Affected software

Linux kernel
Ubuntu
SUSE Linux
linux (Ubuntu package)
linux-lts-quantal (Ubuntu package)
linux-lts-raring (Ubuntu package)
linux-lts-trusty (Ubuntu package)

How to mitigate CVE-2014-1738

Install update from vendor's website.

linux (Ubuntu package) - addressed in versions 2.6.32-60.122, 3.2.0-63.95, 3.11.0-22.38, 3.13.0-27.50
linux-lts-quantal (Ubuntu package) - update to 3.5.0-51.76~precise1
linux-lts-raring (Ubuntu package) - update to 3.8.0-41.60~precise1
linux-lts-trusty (Ubuntu package) - update to 3.13.0-30.54~precise2

External References

Related Security Bulletins