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wolfSSL 5.5.0 Session Resumption Denial Of Service Vulnerability

[ 0Day-ID-38161 ]
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wolfSSL 5.5.0 Session Resumption Denial Of Service Vulnerability [ Highlight ]
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Verified
Price
free
Risk
[
Security Risk Medium
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Rel. releases
Description
wolfSSL versions prior to 5.5.0 suffer from a denial of service condition related to session resumption. When a TLS 1.3 client connects to a wolfSSL server and SSL_clear is called on its session, the server crashes with a segmentation fault. The bug occurs after a client performs a handshake against a wolfSSL server and then closes the connection. If the server reuses the previous session structure (struct WOLFSSL) by calling wolfSSL_clear(WOLFSSL* ssl) on it, the next received Client Hello, which resumes the previous session, crashes the server. Note, that this bug only exists in resumed handshakes using TLS session resumption. This bug was discovered using the novel symbolic-model-guided fuzzer tlspuffin.
CVE
CVE-2022-38152
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