SB2014051206 - Permissions, Privileges, and Access Controls in Linux kernel
Published: May 12, 2014 Updated: August 10, 2020
Security Bulletin ID
SB2014051206
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2014-1737)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
Remediation
Install update from vendor's website.
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://secunia.com/advisories/59262
- http://secunia.com/advisories/59309
- http://secunia.com/advisories/59406
- http://secunia.com/advisories/59599
- 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