CVE-2016-4794

HIGH
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

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.

References

http://rhn.redhat.com/errata/RHSA-2016-2574.html

http://rhn.redhat.com/errata/RHSA-2016-2584.html

http://www.openwall.com/lists/oss-security/2016/05/12/6

http://www.securityfocus.com/bid/90625

http://www.ubuntu.com/usn/USN-3053-1

http://www.ubuntu.com/usn/USN-3054-1

http://www.ubuntu.com/usn/USN-3055-1

http://www.ubuntu.com/usn/USN-3056-1

http://www.ubuntu.com/usn/USN-3057-1

https://bugzilla.redhat.com/show_bug.cgi?id=1335889

https://lkml.org/lkml/2016/4/17/125

https://source.android.com/security/bulletin/2016-12-01.html

Details

Source: MITRE

Published: 2016-05-23

Updated: 2018-01-05

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (15 total)

IDNameProductFamilySeverity
125100EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1494)NessusHuawei Local Security Checks
high
124980EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1527)NessusHuawei Local Security Checks
critical
95841Scientific Linux Security Update : kernel on SL7.x x86_64 (20161103)NessusScientific Linux Local Security Checks
critical
95321CentOS 7 : kernel (CESA-2016:2574)NessusCentOS Local Security Checks
critical
95045OracleVM 3.4 : Unbreakable / etc (OVMSA-2016-0162)NessusOracleVM Local Security Checks
high
95042Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3644)NessusOracle Linux Local Security Checks
high
94697Oracle Linux 7 : kernel (ELSA-2016-2574)NessusOracle Linux Local Security Checks
critical
94547RHEL 7 : kernel-rt (RHSA-2016:2584)NessusRed Hat Local Security Checks
critical
94537RHEL 7 : kernel (RHSA-2016:2574)NessusRed Hat Local Security Checks
critical
92867Ubuntu 16.04 LTS : linux-snapdragon vulnerabilities (USN-3057-1)NessusUbuntu Local Security Checks
high
92866Ubuntu 16.04 LTS : linux-raspi2 vulnerabilities (USN-3056-1)NessusUbuntu Local Security Checks
high
92865Ubuntu 16.04 LTS : linux vulnerabilities (USN-3055-1)NessusUbuntu Local Security Checks
high
92864Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3054-1)NessusUbuntu Local Security Checks
high
92863Ubuntu 14.04 LTS : linux-lts-vivid vulnerabilities (USN-3053-1)NessusUbuntu Local Security Checks
high
92308openSUSE Security Update : the Linux Kernel (openSUSE-2016-869)NessusSuSE Local Security Checks
high