Improper Caching of Intermediate CA Certificates in Conscrypt

CVE-2016-0818 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

The caching functionality in the TrustManagerImpl class in TrustManagerImpl.java in Conscrypt in Android 4.x before 4.4.4, 5.x before 5.1.1 LMY49H, and 6.x before 2016-03-01 mishandles the distinction between an intermediate CA and a trusted root CA, which allows man-in-the-middle attackers to spoof servers by leveraging access to an intermediate CA to issue a certificate, aka internal bug 26232830.

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