Lucene search

K
ibmIBM8F5E6D0D5AA5B6BD039DE40B1CE5001A9426F10EB2AB9028CF85EA3FCAF2B10C
HistoryAug 07, 2023 - 11:43 a.m.

Security Bulletin: "Timing Oracle in RSA Decryption" issue may affect GSKit shipped with IBM CICS TX Advanced

2023-08-0711:43:01
www.ibm.com
16
ibm
rsa decryption
vulnerability
gskit
ibm cics tx advanced

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

42.7%

Summary

“Timing Oracle in RSA Decryption” issue may affect GSKit shipped with IBM CICS TX Advanced. IBM CICS TX Advanced has addressed the applicable vulnerabilities.

Vulnerability Details

CVEID:CVE-2023-33850
**DESCRIPTION:**IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decryption, an attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/257132 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

Affected Product(s) Version(s)
IBM CICS TX Advanced 10.1
IBM CICS TX Advanced 11.1

Remediation/Fixes

Product Version Platform Remediation / Fix
IBM CICS TX Advanced

10.1

| Linux| Fix Central Link
IBM CICS TX Advanced|

11.1

| Linux| Fix Central Link

Workarounds and Mitigations

None

Affected configurations

Vulners
Node
ibmcics_txMatch10.1
OR
ibmcics_txMatch11.1
CPENameOperatorVersion
cics txeq10.1
cics txeq11.1

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

42.7%

Related for 8F5E6D0D5AA5B6BD039DE40B1CE5001A9426F10EB2AB9028CF85EA3FCAF2B10C