Information Exposure Affecting falco package, versions <0.37.1-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.11% (46th percentile)

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  • Snyk IDSNYK-WOLFILATEST-FALCO-6354298
  • published1 Mar 2024
  • disclosed5 Dec 2023

Introduced: 5 Dec 2023

CVE-2023-45287  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade Wolfi falco to version 0.37.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream falco package and not the falco package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

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 Scores

version 3.1