CVE-2014-4654
Vulnerability Summary
Timeline
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.
CVSS Metrics
- v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P
EPSS Trends
Current EPSS score: 0.50%• Percentile: 42%
Techniques & Countermeasures
- CWE-416•Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Affected Systems
- canonical•ubuntu_linux
12.04
- debian•linux
< 3.14.9-1 | < 3.14.9-1 | < 3.14.9-1 | < 3.14.9-1
- ubuntu•linux
< 3.13.0-35.62
- ubuntu•linux-azure
all
- ubuntu•linux-azure-6.11
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fde-5.15
all
- ubuntu•linux-gcp
all
- ubuntu•linux-gcp-6.11
all
- ubuntu•linux-gke
all
- ubuntu•linux-gkeop
all
- ubuntu•linux-hwe
all
- ubuntu•linux-hwe-6.11
all
- ubuntu•linux-hwe-edge
all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-lowlatency-hwe-6.11
all
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
all
- ubuntu•linux-realtime
all | all
- ubuntu•linux-riscv
all | all | all
- linux•linux_kernel
< 3.15.2
- suse•linux_enterprise_server
10:sp4
References (24)
- http://secunia.com/advisories/60545
- http://www.ubuntu.com/usn/USN-2335-1
- http://www.ubuntu.com/usn/USN-2334-1
- http://www.securityfocus.com/bid/68162
- http://secunia.com/advisories/60564
- http://rhn.redhat.com/errata/RHSA-2014-1083.html
- http://secunia.com/advisories/59777
- http://secunia.com/advisories/59434
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
- https://bugzilla.redhat.com/show_bug.cgi?id=1113445
- https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563
- http://www.openwall.com/lists/oss-security/2014/06/26/6
- 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
- https://ubuntu.com/security/CVE-2014-4654
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82262a46627bebb0febcc26664746c25cef08563
- https://ubuntu.com/security/notices/USN-2332-1
- https://ubuntu.com/security/notices/USN-2333-1
- https://ubuntu.com/security/notices/USN-2334-1
- https://ubuntu.com/security/notices/USN-2335-1
- https://ubuntu.com/security/notices/USN-2336-1
- https://ubuntu.com/security/notices/USN-2337-1
- https://www.cve.org/CVERecord?id=CVE-2014-4654
- https://security-tracker.debian.org/tracker/CVE-2014-4654