#VU66122 Use of insufficiently random values in Go programming language - CVE-2022-30629

Vulnerability identifier: #VU66122

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-30629

CWE-ID: CWE-330

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Go programming language
Universal components / Libraries / Scripting languages

Vendor: Google

Description

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

The vulnerability exists in crypto/tls implementation when generating TLS tickets age. The newSessionTicketMsgTLS13.ageAdd is always set to "0" instead of a random value.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1.17 - 1.18.2

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External links
https://github.com/golang/go/issues/52814
https://github.com/golang/vulndb/issues/531

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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.