CVE-2020-4355

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

IBM DB2 para Linux, UNIX y Windows (incluye DB2 Connect Server) versiones 9.7, 10.1, 10.5, 11.1 y 11.5, es vulnerable a una denegación de servicio, causada por el manejo inapropiado de las peticiones de renegociación Secure Sockets Layer (SSL). Mediante el envío de peticiones especialmente diseñadas, un atacante remoto podría explotar esta vulnerabilidad para aumentar el uso de recursos en el sistema. IBM X-Force ID: 178507

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-30 CVE Reserved
2020-07-01 CVE Published
2023-07-05 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://www.ibm.com/support/pages/node/6242350	2021-07-21

URL	Date	SRC
https://exchange.xforce.ibmcloud.com/vulnerabilities/178507	2021-07-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	9.7.0.0 Search vendor "Ibm" for product "Db2" and version "9.7.0.0"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	9.7.0.0 Search vendor "Ibm" for product "Db2" and version "9.7.0.0"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	10.1.0.0 Search vendor "Ibm" for product "Db2" and version "10.1.0.0"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	10.1.0.0 Search vendor "Ibm" for product "Db2" and version "10.1.0.0"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	10.5.0.0 Search vendor "Ibm" for product "Db2" and version "10.5.0.0"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	10.5.0.0 Search vendor "Ibm" for product "Db2" and version "10.5.0.0"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	11.1.0.0 Search vendor "Ibm" for product "Db2" and version "11.1.0.0"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	11.1.0.0 Search vendor "Ibm" for product "Db2" and version "11.1.0.0"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	11.5.0.0 Search vendor "Ibm" for product "Db2" and version "11.5.0.0"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Ibm Search vendor "Ibm"	Db2 Search vendor "Ibm" for product "Db2"	11.5.0.0 Search vendor "Ibm" for product "Db2" and version "11.5.0.0"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe