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HistoryDec 08, 2022 - 10:45 a.m.

Security Bulletin: FasterXML Jackson Databind used by CICS Transaction Gateway is vulnerable to a denial of service

2022-12-0810:45:18
www.ibm.com
9
fasterxml jackson databind
cics transaction gateway
denial of service
cve-2020-36518
vulnerability
java stackoverflow
remote attacker
cvss base score 7.5
apar
fix

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

60.0%

Summary

FasterXML Jackson Databind used by CICS Transaction Gateway is vulnerable to a denial of service, caused by a Java StackOverflow exception (CVE-2020-36518). CICS Transaction Gateway addressed the applicable CVE.

Vulnerability Details

CVEID:CVE-2020-36518
**DESCRIPTION:**FasterXML jackson-databind is vulnerable to a denial of service, caused by a Java StackOverflow exception. By using a large depth of nested objects, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/222319 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM CICS Transaction Gateway 9.3

Remediation/Fixes

Apply the applicable CICS Transaction Gateway APAR below.

Product

|

VRMF

|

APAR

|

Remediation / First Fix

—|—|—|—
CICS Transaction Gateway| 9.3| PH50737|

 

s930 Container:

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms&fixids=9.3.0.0-CICSTG-PH50737-s390xcontainer&source=SAR

x86 Container:

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms&fixids=9.3.0.0-CICSTG-PH50737-x86container&source=SAR

AIX:

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms&fixids=9.3.0.0-CICSTG-PH50737-AIX&source=SAR

ILNX:

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms&fixids=9.3.0.0-CICSTG-PH50737-ILNX&source=SAR

PLNX:

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms&fixids=9.3.0.0-CICSTG-PH50737-PLNX&source=SAR

PLXLE:

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms&fixids=9.3.0.0-CICSTG-PH50737-PLXLE&source=SAR

WIN:

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms&fixids=9.3.0.0-CICSTG-PH50737-WIN&source=SAR

ZLNX:

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms&fixids=9.3.0.0-CICSTG-PH50737&source=SAR

Workarounds and Mitigations

None

Affected configurations

Vulners
Node
ibmcics_transaction_gatewayMatch9.3
VendorProductVersionCPE
ibmcics_transaction_gateway9.3cpe:2.3:a:ibm:cics_transaction_gateway:9.3:*:*:*:*:*:*:*

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

60.0%