CVE-2017-2618

MEDIUM

Description

A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.

References

http://www.securityfocus.com/bid/96272

https://access.redhat.com/errata/RHSA-2017:0931

https://access.redhat.com/errata/RHSA-2017:0932

https://access.redhat.com/errata/RHSA-2017:0933

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2618

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c461cb727d146c9ef2d3e86214f498b78b7d125

https://marc.info/?l=selinux&m=148588165923772&w=2

https://www.debian.org/security/2017/dsa-3791

Details

Source: MITRE

Published: 2018-07-27

Updated: 2018-09-20

Type: CWE-682

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

Vulnerable Software

ID	Name	Product	Family	Severity
125301	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1508)	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
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
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
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
102511	Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)	Nessus	Oracle Linux Local Security Checks	critical
102261	Ubuntu 14.04 LTS : linux vulnerabilities (USN-3381-1) (Stack Clash)	Nessus	Ubuntu Local Security Checks	high
101929	Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3361-1)	Nessus	Ubuntu Local Security Checks	critical
101449	Virtuozzo 7 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-0933)	Nessus	Virtuozzo Local Security Checks	high
99938	EulerOS 2.0 SP2 : kernel (EulerOS-SA-2017-1072)	Nessus	Huawei Local Security Checks	high
99937	EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1071)	Nessus	Huawei Local Security Checks	high
99386	Oracle Linux 7 : kernel (ELSA-2017-0933-1)	Nessus	Oracle Linux Local Security Checks	high
99383	CentOS 7 : kernel (CESA-2017:0933)	Nessus	CentOS Local Security Checks	high
99351	Scientific Linux Security Update : kernel on SL7.x x86_64	Nessus	Scientific Linux Local Security Checks	high
99346	RHEL 7 : kernel (RHSA-2017:0933)	Nessus	Red Hat Local Security Checks	high
99345	RHEL 6 : MRG (RHSA-2017:0932)	Nessus	Red Hat Local Security Checks	high
99344	RHEL 7 : kernel-rt (RHSA-2017:0931)	Nessus	Red Hat Local Security Checks	high
99333	Oracle Linux 7 : kernel (ELSA-2017-0933)	Nessus	Oracle Linux Local Security Checks	high
97357	Debian DSA-3791-1 : linux - security update	Nessus	Debian Local Security Checks	high