CVE-2014-4655
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
7.2 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.1%
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 properly maintain the user_ctl_count value, which allows local users to cause a denial of service (integer overflow and limit bypass) by leveraging /dev/snd/controlCX access for a large number of SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl calls.
Affected configurations
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=82262a46627bebb0febcc26664746c25cef08563
lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
rhn.redhat.com/errata/RHSA-2014-1083.html
secunia.com/advisories/59434
secunia.com/advisories/59777
secunia.com/advisories/60545
secunia.com/advisories/60564
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
www.openwall.com/lists/oss-security/2014/06/26/6
www.securityfocus.com/bid/68162
www.securitytracker.com/id/1036763
www.ubuntu.com/usn/USN-2334-1
www.ubuntu.com/usn/USN-2335-1
bugzilla.redhat.com/show_bug.cgi?id=1113445
github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563
Related
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
7.2 High
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.1%