Marvin attack in Go programming language

Published: 2024-02-09
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-45287
Exploitation vector Network
Public exploit N/A
Vulnerable software
Go programming language
Universal components / Libraries / Scripting languages

Vendor Google

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Observable discrepancy

EUVDB-ID: #VU86309

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45287

CWE-ID: CWE-203 - Observable discrepancy

Exploit availability: No


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

The vulnerability exists due to a timing discrepancy when handling RSA based TLS key exchanges. A remote attacker can perform a Marvin attack and gain access to sensitive information.


Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1.0 - 1.19.13

External links

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.