UBUNTU-CVE-2015-8963
Advisory lineage Upstream: 1 Downstream: 1
Upstream
Downstream
Published: 16 Nov 2016, 00:00
Last modified:12 May 2026, 13:28
Vulnerability Summary
Overall Risk (default)
medium
28/100 CVSS Score
7 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
16 Nov 2016, 00:00
Published
Vulnerability first disclosed
12 May 2026, 13:28
Last Modified
Vulnerability information updated
Description
Race condition in kernel/events/core.c in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect handling of an swevent data structure during a CPU unplug operation.
CVSS Metrics
- v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- v3.0•HIGH•Score: 7CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Systems
- ubuntu•linux
< 3.13.0-125.174
- 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-oem
all
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
all
- ubuntu•linux-realtime
all | all
- ubuntu•linux-riscv
all | all | all
References (7)
- https://ubuntu.com/security/CVE-2015-8963
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=12ca6ad2e3a896256f086497a7c7406a547ee373
- http://source.android.com/security/bulletin/2016-11-01.html
- https://github.com/torvalds/linux/commit/12ca6ad2e3a896256f086497a7c7406a547ee373
- https://ubuntu.com/security/notices/USN-3360-1
- https://ubuntu.com/security/notices/USN-3360-2
- https://www.cve.org/CVERecord?id=CVE-2015-8963