CVE-2020-4355 | BDVDB-2026-138296 Detail

IBMDB2 for Linux- UNIX and Windows

Description#

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation requests. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to increase the resource usage on the system. IBM X-Force ID: 178507.

Impact#

Per CVSS v3.0: confidentiality impact none, integrity impact none, availability impact low. Attack vector: network.

Weaknesses#

No weakness recorded in the source data.

References#

Exploit#

No public exploit known

History#

Version 12020-07-01Record published in the CVE List.
Version 22024-09-17Most recent update recorded in the CVE List.

Published

Published: 2020-07-01
Last modified: 2024-09-17

Vendor information

Vendor: IBM
Product: DB2 for Linux- UNIX and Windows

All IBM vulnerabilities

Score

5.3 Medium

EPSS

2.1%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 82.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
9.7
Fixed
Not stated
Vulnerable
10.1
Fixed
Not stated
Vulnerable
10.5
Fixed
Not stated
Vulnerable
11.1
Fixed
Not stated
Vulnerable
11.5
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

Not available

CVSS v3.0

5.3 Medium

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

Metric breakdown
Integrity	None
Attack Vector	Network
Scope	Unchanged
Confidentiality	None
User Interaction	None
Privileges Required	None
Availability	Low
Attack Complexity	Low

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).