CVE-2016-4470

medium
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Description

The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a

https://bugzilla.redhat.com/show_bug.cgi?id=1341716

https://github.com/torvalds/linux/commit/38327424b40bcebe2de92d07312c89360ac9229a

http://www.openwall.com/lists/oss-security/2016/06/15/11

http://rhn.redhat.com/errata/RHSA-2016-1532.html

http://rhn.redhat.com/errata/RHSA-2016-1541.html

http://rhn.redhat.com/errata/RHSA-2016-1539.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html

http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html

http://www.ubuntu.com/usn/USN-3052-1

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html

http://rhn.redhat.com/errata/RHSA-2016-1657.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00012.html

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

http://www.debian.org/security/2016/dsa-3607

http://www.ubuntu.com/usn/USN-3050-1

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html

http://www.ubuntu.com/usn/USN-3049-1

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

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00013.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html

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

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html

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

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html

http://www.ubuntu.com/usn/USN-3051-1

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

http://www.securitytracker.com/id/1036763

http://rhn.redhat.com/errata/RHSA-2016-2133.html

http://rhn.redhat.com/errata/RHSA-2016-2128.html

http://rhn.redhat.com/errata/RHSA-2016-2076.html

http://rhn.redhat.com/errata/RHSA-2016-2074.html

http://rhn.redhat.com/errata/RHSA-2016-2006.html

Details

Source: MITRE

Published: 2016-06-27

Updated: 2019-12-27

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Tenable Plugins

View all (59 total)

IDNameProductFamilySeverity
124985EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1532)NessusHuawei Local Security Checks
high
124816EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1492)NessusHuawei Local Security Checks
critical
99806EulerOS 2.0 SP1 : kernel (EulerOS-SA-2016-1043)NessusHuawei Local Security Checks
high
99163OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW)NessusOracleVM Local Security Checks
critical
97205SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0471-1)NessusSuSE Local Security Checks
high
96903SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0333-1)NessusSuSE Local Security Checks
critical
94929OracleVM 3.2 : Unbreakable / etc (OVMSA-2016-0158) (Dirty COW)NessusOracleVM Local Security Checks
high
94463RHEL 6 : kernel (RHSA-2016:2133) (Dirty COW)NessusRed Hat Local Security Checks
high
94454RHEL 6 : kernel (RHSA-2016:2128) (Dirty COW)NessusRed Hat Local Security Checks
high
94206F5 Networks BIG-IP : Linux kernel vulnerability (K55672042)NessusF5 Networks Local Security Checks
medium
94131RHEL 6 : kernel (RHSA-2016:2076)NessusRed Hat Local Security Checks
medium
94130RHEL 6 : kernel (RHSA-2016:2074)NessusRed Hat Local Security Checks
medium
93892Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20161004)NessusScientific Linux Local Security Checks
high
93867CentOS 6 : kernel (CESA-2016:2006)NessusCentOS Local Security Checks
high
93858RHEL 6 : kernel (RHSA-2016:2006)NessusRed Hat Local Security Checks
high
93857Oracle Linux 6 : kernel (ELSA-2016-2006)NessusOracle Linux Local Security Checks
high
93679OracleVM 3.4 : Unbreakable / etc (OVMSA-2016-0100)NessusOracleVM Local Security Checks
critical
93370SUSE SLES11 Security Update : kernel (SUSE-SU-2016:2245-1)NessusSuSE Local Security Checks
critical
93321Debian DLA-609-1 : linux security updateNessusDebian Local Security Checks
high
93299SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:2105-1)NessusSuSE Local Security Checks
high
93284SUSE SLES11 Security Update : kernel (SUSE-SU-2016:2018-1)NessusSuSE Local Security Checks
high
93283SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2014-1)NessusSuSE Local Security Checks
high
93280SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2010-1)NessusSuSE Local Security Checks
high
93278SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2006-1)NessusSuSE Local Security Checks
high
93277SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2005-1)NessusSuSE Local Security Checks
high
93276SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2002-1)NessusSuSE Local Security Checks
high
93275SUSE SLES12 Security Update : kernel (SUSE-SU-2016:2001-1)NessusSuSE Local Security Checks
high
93274SUSE SLES12 Security Update : kernel (SUSE-SU-2016:1999-1)NessusSuSE Local Security Checks
medium
93273SUSE SLES12 Security Update : kernel (SUSE-SU-2016:1998-1)NessusSuSE Local Security Checks
medium
93270SUSE SLES12 Security Update : kernel (SUSE-SU-2016:1995-1)NessusSuSE Local Security Checks
high
93216openSUSE Security Update : the Linux Kernel (openSUSE-2016-1029)NessusSuSE Local Security Checks
high
93148Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3596)NessusOracle Linux Local Security Checks
critical
93104openSUSE Security Update : the Linux Kernel (openSUSE-2016-1015)NessusSuSE Local Security Checks
critical
93094RHEL 7 : kernel (RHSA-2016:1657)NessusRed Hat Local Security Checks
high
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
92862Ubuntu 14.04 LTS : linux vulnerabilities (USN-3052-1)NessusUbuntu Local Security Checks
medium
92861Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-3051-1)NessusUbuntu Local Security Checks
medium
92860Ubuntu 12.04 LTS : linux vulnerabilities (USN-3049-1)NessusUbuntu Local Security Checks
high
92783OracleVM 3.3 : Unbreakable / etc (OVMSA-2016-0095)NessusOracleVM Local Security Checks
medium
92782OracleVM 3.4 : Unbreakable / etc (OVMSA-2016-0094)NessusOracleVM Local Security Checks
medium
92781Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3593)NessusOracle Linux Local Security Checks
medium
92780Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2016-3592)NessusOracle Linux Local Security Checks
medium
92779Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3591)NessusOracle Linux Local Security Checks
medium
92719Scientific Linux Security Update : kernel on SL7.x x86_64 (20160802)NessusScientific Linux Local Security Checks
high
92702CentOS 7 : kernel (CESA-2016:1539)NessusCentOS Local Security Checks
high
92695RHEL 7 : kernel-rt (RHSA-2016:1541)NessusRed Hat Local Security Checks
medium
92694RHEL 7 : kernel (RHSA-2016:1539)NessusRed Hat Local Security Checks
high
92692RHEL 6 : MRG (RHSA-2016:1532)NessusRed Hat Local Security Checks
medium
92688Oracle Linux 7 : kernel (ELSA-2016-1539)NessusOracle Linux Local Security Checks
high
92661Amazon Linux AMI : kernel (ALAS-2016-726)NessusAmazon Linux Local Security Checks
high
92442Fedora 22 : kernel (2016-63ee0999e4)NessusFedora Local Security Checks
high
92308openSUSE Security Update : the Linux Kernel (openSUSE-2016-869)NessusSuSE Local Security Checks
high
92256Fedora 23 : kernel (2016-73a733f4d9)NessusFedora Local Security Checks
high
92232Fedora 24 : kernel (2016-1c409313f4)NessusFedora Local Security Checks
high
91886Debian DSA-3607-1 : linux - security updateNessusDebian Local Security Checks
critical