Vulnerability Name:

CVE-2017-2618 (CCN-132346)

Assigned:2016-12-01
Published:2017-02-16
Updated:2023-02-12
Summary: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.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.5 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-193
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-2618

Source: CCN
Type: IBM Security Bulletin T1025779 (PowerKVM)
Vulnerabilities in the Linux kernel affect PowerKVM

Source: CCN
Type: IBM Security Bulletin 2008854 (QRadar Network Security)
IBM QRadar Network Security is affected by vulnerabilities in Linux kernel

Source: CCN
Type: BID-96272
Linux Kernel 'selinux/hooks.c' Local Denial of Service Vulnerability

Source: secalert@redhat.com
Type: Third Party Advisory, VDB Entry
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: CCN
Type: Red Hat Bugzilla – Bug 1419916
(CVE-2017-2618) CVE-2017-2618 kernel: Off-by-one error in selinux_setprocattr (/proc/self/attr/fscreate)

Source: secalert@redhat.com
Type: Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com

Source: XF
Type: UNKNOWN
linux-kernel-cve20172618-dos(132346)

Source: CCN
Type: Linux Kernel GIT Repository
selinux: fix off-by-one in setprocattr

Source: secalert@redhat.com
Type: Patch, Vendor Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Patch, Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-2618

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/a:redhat:rhel_extras_rt:7:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*
    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*
    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:7::computenode:*:*:*:*:*
    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*
    • Configuration RedHat 6:
  • cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:-:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:powerkvm:3.1:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_network_security:5.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:201726180000000
    V
    		CVE-2017-2618 on Ubuntu 18.04 LTS (bionic) - low.
    2018-07-27
    oval:com.ubuntu.trusty:def:20172618000
    V
    		CVE-2017-2618 on Ubuntu 14.04 LTS (trusty) - low.
    2018-07-27
    oval:com.ubuntu.xenial:def:201726180000000
    V
    		CVE-2017-2618 on Ubuntu 16.04 LTS (xenial) - low.
    2018-07-27
    oval:com.ubuntu.xenial:def:20172618000
    V
    		CVE-2017-2618 on Ubuntu 16.04 LTS (xenial) - low.
    2018-07-27
    oval:com.ubuntu.bionic:def:20172618000
    V
    		CVE-2017-2618 on Ubuntu 18.04 LTS (bionic) - low.
    2018-07-27
    oval:com.redhat.rhsa:def:20170931
    P
    		RHSA-2017:0931: kernel-rt security and bug fix update (Important)
    2017-04-12
    oval:com.redhat.rhsa:def:20170933
    P
    		RHSA-2017:0933: kernel security, bug fix, and enhancement update (Important)
    2017-04-12
    oval:org.cisecurity:def:1938
    P
    		DSA-3791-1 -- linux -- security update
    2017-03-10
    oval:com.ubuntu.precise:def:20172618000
    V
    		CVE-2017-2618 on Ubuntu 12.04 LTS (precise) - low.
    2017-02-09
    oval:com.ubuntu.artful:def:20172618000
    V
    		CVE-2017-2618 on Ubuntu 17.10 (artful) - low.
    2017-02-09
    BACK
    linux linux kernel -
    ibm powerkvm 3.1
    ibm qradar network security 5.4