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Advisories

openssl_encrypt before 1.4.9 Key Substitution via Identity Shadowing

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severity
medium
date
Affecting

  • openssl_encrypt >= 0, < 1.4.9

CWE
  • CWE-345 Insufficient Verification of Data Authenticity
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
openssl_encrypt before 1.4.9 fails to prevent namespace collisions between own identities and contacts in IdentityStore, allowing attackers to create shadowed contact entries invisible until the corresponding own identity is deleted. When the own identity is deleted, the shadowed contact becomes visible and resolves to the attacker's keys, enabling silent key substitution for encrypted files.

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