Improper input validation in Linux Kernel
CVE-2016-2549
sound/core/hrtimer.c in the Linux kernel before 4.4.1 does not prevent recursive callback access, which allows local users to cause a denial of service (deadlock) via a crafted ioctl call.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.0% 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
Weakness classification (CWE)
References
- www.ubuntu.com/usn/USN-2930-1 (vendor-advisory)
- www.securityfocus.com/bid/83382 (vdb-entry)
- www.ubuntu.com/usn/USN-2967-1 (vendor-advisory)
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
- www.ubuntu.com/usn/USN-2930-2 (vendor-advisory)
- github.com/torvalds/linux/commit/2ba1fe7a06d3624f9a7586d672b55f08f7c670f3
- www.debian.org/security/2016/dsa-3503 (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi
- www.ubuntu.com/usn/USN-2967-2 (vendor-advisory)
- www.openwall.com/lists/oss-security/2016/01/19/1 (mailing-list)
Frequently asked questions
- What is CVE-2016-2549?
- CVE-2016-2549 is a medium-severity vulnerability in Linux Kernel, classified under Improper Input Validation. CVSS score: 6.2/10. Published 2016-04-27.
- How severe is CVE-2016-2549?
- Medium severity. CVSS v3 base score is 6.2 out of 10.