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CVE Record

CVE-2018-1977: IBM DB2 for Linux, UNIX and Windows 11.1 (includes DB2 Connect Server) contains a denial of service vulnera...

IBM DB2 for Linux, UNIX and Windows 11.1 (includes DB2 Connect Server) contains a denial of service vulnerability. A remote, authenticated DB2 user could exploit this vulnerability by issuing a specially-crafted SELECT statement with TRUNCATE function. IBM X-Force ID: 154032.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2018-1977 is a denial-of-service issue in IBM DB2 for Linux, UNIX and Windows 11.1, including DB2 Connect Server. A logged-in DB2 user could trigger service disruption through a malformed query. This is not a data-theft issue in the provided sources, but it can affect database availability. Organizations are likely exposed if they still run IBM DB2 LUW 11.1 or DB2 Connect Server 11.1 and allow authenticated database users or applications to submit queries. Handle during normal vulnerability remediation unless DB2 11.1 supports critical business workflows or untrusted users can run database queries. Prioritize higher where outage tolerance is low. Mitigation focus: Identify DB2 LUW and DB2 Connect Server 11.1 deployments.; Review IBM advisory 10788089 for the official remediation.; Apply the IBM-recommended fix pack or update path..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2018-1977 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/A:H/AC:H/AV:N/C:N/I:N/PR:L/S:U/UI:N/E:U/RC:C/RL:O

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.0MediumCVSS:3.0/A:H/AC:H/AV:N/C:N/I:N/PR:L/S:U/UI:N/E:U/RC:C/RL:O1.63.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.3Medium
CVSS 3.0 vector shape for CVE-2018-1977Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/A:H/AC:H/AV:N/C:N/I:N/PR:L/S:U/UI:N/E:U/RC:C/RL:O

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
IBMDB2 for Linux, UNIX and Windows11.1Listed
Weakness

CWE details

No CWE listed

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