CVE-2023-33850

Published: Aug 22, 2023

Modified: Nov 3, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

Vendor	Product	Versions
IBM	TXSeries for Multiplatforms	affected `8.1, 8.2, 9.1`
IBM	CICS TX Standard	affected `11.1`
IBM	CICS TX Advanced	affected `10.1, 11.1`

Weaknesses (CWE)

CWE-203

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

References

https://www.ibm.com/support/pages/node/7010369

vendor-advisory

https://www.ibm.com/support/pages/node/7022413

vendor-advisory

https://www.ibm.com/support/pages/node/7022414

vendor-advisory

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CVE-2023-33850

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References