Integer overflow in Linux Kernel
CVE-2014-4655
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.9 (Medium). Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.005 (40.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 12.04
- SUSE Linux Enterprise Server — versions 10
Weakness classification (CWE)
References
- secunia.com/advisories/60545 (Third Party Advisory, third-party-advisory)
- www.ubuntu.com/usn/USN-2335-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-2334-1 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/68162 (VDB Entry, Third Party Advisory, vdb-entry)
- secunia.com/advisories/60564 (Third Party Advisory, third-party-advisory)
- rhn.redhat.com/errata/RHSA-2014-1083.html (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1036763 (VDB Entry, Third Party Advisory, vdb-entry)
- secunia.com/advisories/59777 (Third Party Advisory, third-party-advisory)
- secunia.com/advisories/59434 (Third Party Advisory, third-party-advisory)
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2 (Release Notes, Vendor Advisory)