CVE-2014-4654

Description

The snd_ctl_elem_add function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not check authorization for SNDRV_CTL_IOCTL_ELEM_REPLACE commands, which allows local users to remove kernel controls and cause a denial of service (use-after-free and system crash) by leveraging /dev/snd/controlCX access for an ioctl call.

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/60545 third party advisory
http://www.ubuntu.com/usn/USN-2335-1 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-2334-1 third party advisory vendor advisory
http://www.securityfocus.com/bid/68162 vdb entry third party advisory
http://secunia.com/advisories/60564 third party advisory
http://rhn.redhat.com/errata/RHSA-2014-1083.html third party advisory vendor advisory
http://secunia.com/advisories/59777 third party advisory
http://secunia.com/advisories/59434 third party advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2 release notes vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1113445 issue tracking third party advisory
https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563 third party advisory patch
http://www.openwall.com/lists/oss-security/2014/06/26/6 third party advisory mailing list
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=82262a46627bebb0febcc26664746c25cef08563
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html mailing list third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2014-4654?
CVE-2014-4654 has been scored as a medium severity vulnerability.
How to fix CVE-2014-4654?
To fix CVE-2014-4654, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-4654 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-4654 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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