Vulnerability CVE-2014-1737
Published: 2014-05-11   Modified: 2014-05-12

Description:
The raw_cmd_copyin function in drivers/block/floppy.c in the Linux kernel through 3.14.3 does not properly handle error conditions during processing of an FDRAWCMD ioctl call, which allows local users to trigger kfree operations and gain privileges by leveraging write access to a /dev/fd device.

See advisories in our WLB2 database:
Topic
Author
Date
High
Linux Kernel 3.14.3 /dev/fd gain privileges
Matthew Daley
12.05.2014

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ef87dbe7614341c2e7bfe8d32fcb7028cc97442c
http://linux.oracle.com/errata/ELSA-2014-0771.html
http://linux.oracle.com/errata/ELSA-2014-3043.html
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html
http://rhn.redhat.com/errata/RHSA-2014-0800.html
http://rhn.redhat.com/errata/RHSA-2014-0801.html
http://www.debian.org/security/2014/dsa-2926
http://www.debian.org/security/2014/dsa-2928
http://www.openwall.com/lists/oss-security/2014/05/09/2
http://www.securityfocus.com/bid/67300
http://www.securitytracker.com/id/1030474
https://bugzilla.redhat.com/show_bug.cgi?id=1094299
https://github.com/torvalds/linux/commit/ef87dbe7614341c2e7bfe8d32fcb7028cc97442c
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