Vulnerability Name:

CVE-2020-2686 (CCN-174634)

Assigned:2019-12-10
Published:2020-01-14
Updated:2021-12-30
Summary:Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.18 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
6.5 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-2686

Source: XF
Type: UNKNOWN
oracle-cpujan2020-cve20202686(174634)

Source: GENTOO
Type: Third Party Advisory
GLSA-202105-27

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20200122-0002/

Source: UBUNTU
Type: Third Party Advisory
USN-4250-1

Source: CCN
Type: Oracle CPUJan2020
Oracle Critical Patch Update Advisory - January 2020

Source: MISC
Type: Patch, Vendor Advisory
https://www.oracle.com/security-alerts/cpujan2020.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:oracle:mysql:*:*:*:*:*:*:*:* (Version >= 8.0.0 and <= 8.0.18)

    • Configuration 2:
  • cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
  • OR cpe:/a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*
  • OR cpe:/a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
  • OR cpe:/a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
  • OR cpe:/a:netapp:snapcenter:-:*:*:*:*:*:*:*

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

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

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20203732
    P
    		RHSA-2020:3732: mysql:8.0 security update (Important)
    2020-09-14
    oval:com.ubuntu.disco:def:202026860000000
    V
    		CVE-2020-2686 on Ubuntu 19.04 (disco) - medium.
    2020-01-15
    oval:com.ubuntu.bionic:def:202026860000000
    V
    		CVE-2020-2686 on Ubuntu 18.04 LTS (bionic) - medium.
    2020-01-15
    oval:com.ubuntu.xenial:def:202026860000000
    V
    		CVE-2020-2686 on Ubuntu 16.04 LTS (xenial) - medium.
    2020-01-15
    BACK
    oracle mysql *
    canonical ubuntu linux 16.04
    canonical ubuntu linux 18.04
    canonical ubuntu linux 19.10
    netapp active iq unified manager -
    netapp active iq unified manager -
    netapp oncommand insight -
    netapp oncommand workflow automation -
    netapp snapcenter -