#VU73264 Incorrect calculation in Go programming language - CVE-2023-24532

Vulnerability identifier: #VU73264

Vulnerability risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-24532

CWE-ID: CWE-682

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 to compromise the target system.

The vulnerability exists due to the ScalarMult and ScalarBaseMult methods of the P256 Curve may return an incorrect result if called with some specific unreduced scalars.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1.19 - 1.19.6, 1.20 - 1.20.1

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External links
https://go.dev/cl/471255
https://pkg.go.dev/vuln/GO-2023-1621
https://groups.google.com/g/golang-announce/c/3-TpUx48iQY
https://go.dev/issue/58647

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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.