CVE-2017-12192

MEDIUM

Description

The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5

https://access.redhat.com/errata/RHSA-2018:0151

https://bugzilla.redhat.com/show_bug.cgi?id=1493435

https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678

https://lkml.org/lkml/2017/9/18/764

https://usn.ubuntu.com/3583-1/

https://usn.ubuntu.com/3583-2/

Details

Source: MITRE

Published: 2017-10-12

Updated: 2018-03-16

Type: CWE-476

Risk Information

CVSS v2.0

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 v3.0

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 (29 total)

ID	Name	Product	Family	Severity
127165	NewStart CGSL MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0014)	Nessus	NewStart CGSL Local Security Checks	high
124980	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1527)	Nessus	Huawei Local Security Checks	critical
124822	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1499)	Nessus	Huawei Local Security Checks	high
109158	OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0035) (Dirty COW) (Meltdown) (Spectre)	Nessus	OracleVM Local Security Checks	high
109156	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4071) (Dirty COW) (Meltdown) (Spectre)	Nessus	Oracle Linux Local Security Checks	high
108942	RHEL 7 : kernel-alt (RHSA-2018:0654)	Nessus	Red Hat Local Security Checks	high
107003	Ubuntu 14.04 LTS : linux vulnerabilities (USN-3583-1) (Meltdown)	Nessus	Ubuntu Local Security Checks	critical
106525	RHEL 6 : kernel-rt (RHSA-2018:0181)	Nessus	Red Hat Local Security Checks	high
106364	Oracle Linux 7 : kernel (ELSA-2018-0151) (Meltdown) (Spectre)	Nessus	Oracle Linux Local Security Checks	high
106353	CentOS 7 : kernel (CESA-2018:0151) (Meltdown) (Spectre)	Nessus	CentOS Local Security Checks	high
106340	Scientific Linux Security Update : kernel on SL7.x x86_64 (Meltdown) (Spectre)	Nessus	Scientific Linux Local Security Checks	high
106331	RHEL 7 : kernel-rt (RHSA-2018:0152)	Nessus	Red Hat Local Security Checks	high
106330	RHEL 7 : kernel (RHSA-2018:0151) (Meltdown) (Spectre)	Nessus	Red Hat Local Security Checks	high
105685	SUSE SLES11 Security Update : kernel (SUSE-SU-2018:0040-1) (BlueBorne) (KRACK) (Meltdown) (Spectre)	Nessus	SuSE Local Security Checks	high
105248	OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0174) (BlueBorne) (Dirty COW) (Stack Clash)	Nessus	OracleVM Local Security Checks	high
105247	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3659) (BlueBorne) (Dirty COW) (Stack Clash)	Nessus	Oracle Linux Local Security Checks	high
105172	SUSE SLES11 Security Update : kernel (SUSE-SU-2017:3265-1) (KRACK)	Nessus	SuSE Local Security Checks	critical
105146	OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0172) (Dirty COW)	Nessus	OracleVM Local Security Checks	high
105143	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3651) (Dirty COW)	Nessus	Oracle Linux Local Security Checks	high
104911	EulerOS 2.0 SP2 : kernel (EulerOS-SA-2017-1292)	Nessus	Huawei Local Security Checks	high
104737	Ubuntu 17.10 : linux, linux-raspi2 vulnerabilities (USN-3487-1)	Nessus	Ubuntu Local Security Checks	high
104619	OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0169)	Nessus	OracleVM Local Security Checks	medium
104565	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3640)	Nessus	Oracle Linux Local Security Checks	medium
104374	SUSE SLES12 Security Update : kernel (SUSE-SU-2017:2920-1) (KRACK) (Stack Clash)	Nessus	SuSE Local Security Checks	critical
104321	Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3469-2)	Nessus	Ubuntu Local Security Checks	high
104320	Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3469-1)	Nessus	Ubuntu Local Security Checks	high
104296	EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1271)	Nessus	Huawei Local Security Checks	high
104271	SUSE SLES12 Security Update : kernel (SUSE-SU-2017:2908-1) (KRACK) (Stack Clash)	Nessus	SuSE Local Security Checks	critical
104180	Amazon Linux AMI : kernel (ALAS-2017-914) (BlueBorne)	Nessus	Amazon Linux Local Security Checks	high