CVE-2018-2668

MEDIUM
6.5
CVSS Score
Published: January 18, 2018 at 02:00 AM UTC
Updated: June 17, 2026 at 01:56 AM UTC
15 products affected across 6 vendorsDebian LinuxUbuntu LinuxEnterprise Linux Desktop

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Severity
MEDIUM6.5
Exploit prediction
EPSS 4%
SSVC
No known exploit

Description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.5.58 and prior, 5.6.38 and prior and 5.7.20 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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.0.0 ≤ v < 10.0.3410.1.0 ≤ v < 10.1.3110.2.0 ≤ v < 10.2.135.5.0 ≤ v < 5.5.59
Affected range stops below 10.0.34, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.1.31, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.2.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.5.59, so it looks safe — our inference, not a vendor statement
v ≥ 7.3v ≥ 9.5
All versions
All versions
v ≤ 5.5.58v ≤ 5.6.38v ≤ 5.7.205.5.0 ≤ v ≤ 5.5.585.6.0 ≤ v ≤ 5.6.385.7.0 ≤ v ≤ 5.7.20

References (15)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/102682
VDB Entryx_refsource_SECTRACKBroken LinkThird Party Advisory
http://www.securitytracker.com/id/1040216
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:0586
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:0587
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:2439
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:2729
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:1258

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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