Vulnerability in Linux Kernel
CVE-2016-2547
sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.ubuntu.com/usn/USN-2930-1 (vendor-advisory)
- www.ubuntu.com/usn/USN-2967-1 (vendor-advisory)
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
- bugzilla.redhat.com/show_bug.cgi
- www.ubuntu.com/usn/USN-2930-2 (vendor-advisory)
- github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d (Patch, Vendor Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- www.debian.org/security/2016/dsa-3503 (vendor-advisory)
- www.securityfocus.com/bid/83378 (vdb-entry)
- www.ubuntu.com/usn/USN-2967-2 (vendor-advisory)
Frequently asked questions
- What is CVE-2016-2547?
- CVE-2016-2547 is a medium-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.1/10. Published 2016-04-27.
- How severe is CVE-2016-2547?
- Medium severity. CVSS v3 base score is 5.1 out of 10.