Vulnerability in Linux Kernel
CVE-2016-4581
fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (44.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Linux Kernel
- Oracle Linux — versions 6
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
References
- www.ubuntu.com/usn/USN-3006-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3004-1 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/90607 (vdb-entry)
- www.ubuntu.com/usn/USN-3001-1 (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (Third Party Advisory)
- www.ubuntu.com/usn/USN-3005-1 (vendor-advisory, Third Party Advisory)
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4
- rhn.redhat.com/errata/RHSA-2016-2584.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2016-2574.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html (vendor-advisory)
Frequently asked questions
- What is CVE-2016-4581?
- CVE-2016-4581 is a medium-severity vulnerability in Linux Kernel. CVSS score: 5.5/10. Published 2016-05-23.
- How severe is CVE-2016-4581?
- Medium severity. CVSS v3 base score is 5.5 out of 10.