CVE Database›Document archive›CVE-2014-1738

CVE-2014-1738

kernel: block: floppy: privilege escalation via FDRAWCMD floppy ioctl command

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Severity

Important

Red Hat Product Security

6.6

CVSS 2.0

Review impact separately from score.

Published · May 7, 2014

Updated · June 27, 2026

Description

A flaw was found in the way the Linux kernel's floppy driver handled user space provided data in certain error code paths while processing FDRAWCMD IOCTL commands. A local user with write access to /dev/fdX could use this flaw to free (using the kfree() function) arbitrary kernel memory. (CVE-2014-1737, Important)

It was found that the Linux kernel's floppy driver leaked internal kernel memory addresses to user space during the processing of the FDRAWCMD IOCTL command. A local user with write access to /dev/fdX could use this flaw to obtain information about the kernel heap arrangement. (CVE-2014-1738, Low)

Note: A local user with write access to /dev/fdX could use these two flaws (CVE-2014-1737 in combination with CVE-2014-1738) to escalate their privileges on the system.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 6.6
AV:L/AC:M/Au:S/C:C/I:C/A:C

CWE not specified