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IBME859CE7E5B23AC8D6E62C2CDCCAA3A02B47C985377E910F4A97BF8E00F88B208
HistoryFeb 14, 2023 - 9:04 p.m.

Security Bulletin: IBM CICS TX Advanced is vulnerable to multiple vulnerabilities in Golang Go.

2023-02-1421:04:36
www.ibm.com
6

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

5.1 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.24 Low

EPSS

Percentile

96.5%

Summary

IBM CICS TX Advanced is vulnerable to multiple vulnerabilities in Golang Go. The fix removes these vulnerabilities from IBM CICS TX Advanced.

Vulnerability Details

CVEID:CVE-2020-29652
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by a NULL pointer dereference in the golang.org/x/crypto/ssh component. By sending a specially-crafted request, 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/193622 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)

CVEID:CVE-2017-14623
**DESCRIPTION:**ldap.v2 package (go-ldap) could allow a remote attacker to bypass security restrictions under certain conditions. An attacker could exploit this vulnerability to login with an empty password.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/132379 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2021-43565
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by an input validation flaw in golang.org/x/crypto’s readCipherPacket() function. By sending an empty plaintext packet to a program linked with golang.org/x/crypto/ssh, a remote attacker could exploit this vulnerability to cause a panic.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/219761 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)

CVEID:CVE-2020-15113
**DESCRIPTION:**etcd could allow a remote attacker to bypass security restrictions, caused by the lack of permission checks in the os.MkdirAll function when a given directory path exists already. By sending a specially crafted request, an attacker could exploit this vulnerability to bypass access restrictions.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/186327 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2020-9283
**DESCRIPTION:**Golang golang.org/x/crypto is vulnerable to a denial of service, caused by an error during signature verification in the golang.org/x/crypto/ssh package. By persuading a victim to run a specially crafted file, a remote attacker could exploit this vulnerability to cause a panic.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/176688 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM CICS TX Advanced 11.1

Remediation/Fixes

IBM strongly recommends addressing the vulnerabilities by downloading and applying the interim fix from the table below.

Product

|

Version

|

Defect

|

Remediation / First Fix

—|—|—|—

IBM CICS TX Advanced

|

11.1

|

127799

|

Download the fix from here

Workarounds and Mitigations

None

CPENameOperatorVersion
cics txeq11.1
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8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

5.1 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.24 Low

EPSS

Percentile

96.5%

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