IBM Security Verify Directory update for IBM GSKit-Crypto



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-33850
CWE-ID CWE-203
Exploitation vector Network
Public exploit N/A
Vulnerable software
 IBM Security Verify Directory
Other software / Other software solutions

Vendor IBM Corporation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Observable discrepancy

EUVDB-ID: #VU82583

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-33850

CWE-ID: CWE-203 - Observable discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to timing-based side channel in the RSA Decryption implementation. A remote attacker can send an overly large number of trial messages for decryption and gain unauthorized access to sensitive information on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Security Verify Directory: before 10.0.3.0

CPE2.3 External links

https://www.ibm.com/support/pages/node/7182232


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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