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CVE-2023-45287

UNKNOWN
Published 2023-12-05T16:18:06.104Z
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No CVSS data available

Description

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Go standard library

crypto/tls

Affected Versions:

0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-33qr-2xwr-95pw

Advisory Details

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-45287
WEB https://go.dev/cl/326012/26
WEB https://go.dev/issue/20654
WEB https://groups.google.com/g/golang-announce/c/QMK8IQALDvA
WEB https://people.redhat.com/~hkario/marvin
WEB https://pkg.go.dev/vuln/GO-2023-2375
WEB https://security.netapp.com/advisory/ntap-20240112-0005

Advisory provided by GitHub Security Advisory Database. Published: December 5, 2023, Modified: December 12, 2023

References

https://go.dev/issue/20654
https://go.dev/cl/326012/26
https://groups.google.com/g/golang-announce/c/QMK8IQALDvA
https://people.redhat.com/~hkario/marvin/
https://pkg.go.dev/vuln/GO-2023-2375
https://security.netapp.com/advisory/ntap-20240112-0005/
Published: 2023-12-05T16:18:06.104Z
Last Modified: 2025-02-13T17:14:00.588Z
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