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Advisories

Rustls before 0.23.46 and 0.24.0-dev.1 before 0.24.0-dev.2 Secret Exposure via Debug

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Severity
medium
Date
Affecting

  • rustls >= 0, < 0.23.46

  • rustls >= 0.24.0-dev.1, < 0.24.0-dev.2

CWE
  • CWE-212 Improper Removal of Sensitive Information Before Storage or Transfer
CVSS
4.1
CVSS V4 Vector
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Description
Rustls before 0.23.46 and 0.24.0-dev.1 before 0.24.0-dev.2 contains an information disclosure vulnerability where derived Debug formatting of client session values exposes secret key material. Custom ClientSessionStore implementations that log Tls12ClientSessionValue or Tls13ClientSessionValue can leak TLS 1.2 master secrets or TLS 1.3 resumption PSKs to log readers.

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