Vulnerability in Linux Kernel
CVE-2016-4794
Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.5% 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
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04
References
- www.ubuntu.com/usn/USN-3054-1 (vendor-advisory, Third Party Advisory)
- source.android.com/security/bulletin/2016-12-01.html (Third Party Advisory)
- www.ubuntu.com/usn/USN-3053-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3055-1 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3056-1 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/05/12/6 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-2584.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-2574.html (vendor-advisory, Third Party Advisory)
- lkml.org/lkml/2016/4/17/125 (mailing-list, Exploit, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (VDB Entry, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2016-4794?
- CVE-2016-4794 is a high-severity vulnerability in Linux Kernel. CVSS score: 7.8/10. Published 2016-05-23.
- How severe is CVE-2016-4794?
- High severity. CVSS v3 base score is 7.8 out of 10.