Vulnerability Name:

CVE-2020-36558 (CCN-231892)

Assigned:2020-02-10
Published:2020-02-10
Updated:2022-07-27
Summary:A race condition in the Linux kernel before 5.5.7 involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fault.
CVSS v3 Severity:5.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
4.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:N/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): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/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): None
Integrity (I): None
Availibility (A): Low
5.1 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
4.5 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:N/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): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-362
CWE-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-36558

Source: MISC
Type: Patch, Release Notes, Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.7

Source: XF
Type: UNKNOWN
linux-kernel-cve202036558-dos(231892)

Source: CCN
Type: Linux GIT Repository
vt: vt_ioctl: fix race in VT_RESIZEX

Source: MISC
Type: Exploit, Mailing List, Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cd1ed50efd88261298577cd92a14f2768eddeeb

Source: CCN
Type: IBM Security Bulletin 6854985 (Spectrum Copy Data Management)
Vulnerabilities in Linux Kernel and Golang Go might affect IBM Spectrum Copy Data Management

Source: CCN
Type: IBM Security Bulletin 6963936 (Spectrum Protect Plus)
Vulnerabilities in Linux Kernel may affect IBM Spectrum Protect Plus

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 5.5.7)

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::nfv:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:8::realtime:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 6:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.5.6:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:spectrum_copy_data_management:2.2.0.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20227444
    P
    		RHSA-2022:7444: kernel-rt security and bug fix update (Moderate)
    2022-11-08
    oval:com.redhat.rhsa:def:20227683
    P
    		RHSA-2022:7683: kernel security, bug fix, and enhancement update (Moderate)
    2022-11-08
    oval:org.opensuse.security:def:4739
    P
    		Security update for the Linux Kernel (Important)
    2022-08-26
    oval:org.opensuse.security:def:707
    P
    		Security update for the Linux Kernel (Important)
    2022-08-23
    oval:org.opensuse.security:def:697
    P
    		Security update for the Linux Kernel (Important)
    2022-08-16
    oval:org.opensuse.security:def:118235
    P
    		Security update for the Linux Kernel (Important)
    2022-08-15
    oval:org.opensuse.security:def:119287
    P
    		Security update for the Linux Kernel (Important)
    2022-08-15
    oval:org.opensuse.security:def:118655
    P
    		Security update for the Linux Kernel (Important)
    2022-08-15
    oval:org.opensuse.security:def:119468
    P
    		Security update for the Linux Kernel (Important)
    2022-08-15
    oval:org.opensuse.security:def:118792
    P
    		Security update for the Linux Kernel (Important)
    2022-08-15
    oval:org.opensuse.security:def:119653
    P
    		Security update for the Linux Kernel (Important)
    2022-08-15
    oval:org.opensuse.security:def:118982
    P
    		Security update for the Linux Kernel (Important)
    2022-08-15
    oval:org.opensuse.security:def:4302
    P
    		Security update for the Linux Kernel (Important)
    2022-08-09
    oval:org.opensuse.security:def:6135
    P
    		Security update for the Linux Kernel (Important)
    2022-08-09
    oval:org.opensuse.security:def:4665
    P
    		Security update for the Linux Kernel (Important)
    2022-08-09
    oval:org.opensuse.security:def:6136
    P
    		Security update for the Linux Kernel (Important)
    2022-08-09
    oval:org.opensuse.security:def:6350
    P
    		Security update for the Linux Kernel (Important)
    2022-08-09
    oval:org.opensuse.security:def:5322
    P
    		Security update for the Linux Kernel (Important)
    2022-08-09
    BACK
    linux linux kernel *
    linux linux kernel 5.5.6
    ibm spectrum copy data management 2.2.0.0