Vulnerability Name:

CVE-2020-11565 (CCN-179100)

Assigned:2020-04-01
Published:2020-04-01
Updated:2020-06-10
Summary:** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa.
Note: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.”.
CVSS v3 Severity:6.0 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.0 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H)
5.2 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:3.6 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-11565

Source: XF
Type: UNKNOWN
linux-kernel-cve202011565-code-exec(179100)

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd

Source: CCN
Type: Linux Kernel GIT Repository
mm: mempolicy: require at least one nodeid for MPOL_PREFERRED

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security update

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update

Source: UBUNTU
Type: UNKNOWN
USN-4363-1

Source: UBUNTU
Type: Third Party Advisory
USN-4364-1

Source: UBUNTU
Type: Third Party Advisory
USN-4367-1

Source: UBUNTU
Type: Third Party Advisory
USN-4368-1

Source: UBUNTU
Type: UNKNOWN
USN-4369-1

Source: DEBIAN
Type: Third Party Advisory
DSA-4667

Source: DEBIAN
Type: UNKNOWN
DSA-4698

Source: CCN
Type: IBM Security Bulletin 6410788 (Data Risk Manager)
IBM Data Risk Manager is affected by multiple vulnerabilities

Source: CCN
Type: IBM Security Bulletin 6410876 (Spectrum Protect Plus)
Vulnerabilities in Linux Kernel and Java affect IBM Spectrum Protect Plus

Source: CCN
Type: IBM Security Bulletin 6601949 (QRadar Network Security)
IBM QRadar Network Security is affected by multiple vulnerabilities in kernel.

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 5.6.2)

    • Configuration 2:
  • cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:7::computenode:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*

    • Configuration RedHat 6:
  • cpe:/a:redhat:rhel_extras_rt:7:*:*:*:*:*:*:*

    • Configuration RedHat 7:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 8:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

    • Configuration RedHat 9:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 10:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

    • Configuration RedHat 11:
  • cpe:/a:redhat:enterprise_linux:8::nfv:*:*:*:*:*

    • Configuration RedHat 12:
  • cpe:/a:redhat:enterprise_linux:8::realtime:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.6.2:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:spectrum_protect_plus:10.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_network_security:5.4.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:qradar_network_security:5.5.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:data_risk_manager:2.0.6:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:spectrum_protect_plus:10.1.7:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20204431
    P
    		RHSA-2020:4431: kernel security, bug fix, and enhancement update (Moderate)
    2020-11-04
    oval:com.redhat.rhsa:def:20204609
    P
    		RHSA-2020:4609: kernel-rt security and bug fix update (Moderate)
    2020-11-04
    oval:com.redhat.rhsa:def:20204062
    P
    		RHSA-2020:4062: kernel-rt security and bug fix update (Important)
    2020-09-29
    oval:com.redhat.rhsa:def:20204060
    P
    		RHSA-2020:4060: kernel security, bug fix, and enhancement update (Important)
    2020-09-29
    BACK
    linux linux kernel *
    canonical ubuntu linux 14.04
    canonical ubuntu linux 16.04
    canonical ubuntu linux 18.04
    canonical ubuntu linux 20.04
    linux linux kernel 5.6.2
    ibm spectrum protect plus 10.1.0
    ibm qradar network security 5.4.0
    ibm qradar network security 5.5.0
    ibm data risk manager 2.0.6
    ibm spectrum protect plus 10.1.7