{"id":"ALPINE-CVE-2017-3737","details":"OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an \"error state\" mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected.","modified":"2025-11-19T06:10:18.126553Z","published":"2017-12-07T16:29:00.193Z","upstream":["CVE-2017-3737"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2017-3737"}],"affected":[{"package":{"name":"openssl","ecosystem":"Alpine:v3.3","purl":"pkg:apk/alpine/openssl?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2n-r0"}]}],"versions":["0.9.8i-r0","0.9.8j-r0","0.9.8k-r0","0.9.8k-r1","0.9.8k-r2","0.9.8k-r3","0.9.8k-r4","0.9.8k-r5","0.9.8k-r6","0.9.8k-r7","0.9.8l-r0","0.9.8l-r1","0.9.8m-r0","0.9.8n-r0","0.9.8n-r1","1.0.0-r0","1.0.0a-r0","1.0.0a-r1","1.0.0a-r2","1.0.0a-r3","1.0.0a-r4","1.0.0b-r0","1.0.0c-r0","1.0.0d-r0","1.0.0e-r0","1.0.0f-r0","1.0.0g-r0","1.0.0h-r0","1.0.1-r0","1.0.1a-r0","1.0.1b-r0","1.0.1c-r0","1.0.1c-r1","1.0.1c-r2","1.0.1c-r3","1.0.1d-r0","1.0.1d-r1","1.0.1e-r0","1.0.1e-r1","1.0.1e-r2","1.0.1e-r3","1.0.1e-r4","1.0.1e-r5","1.0.1e-r6","1.0.1e-r7","1.0.1f-r0","1.0.1g-r0","1.0.1g-r1","1.0.1g-r2","1.0.1g-r3","1.0.1h-r0","1.0.1i-r0","1.0.1i-r1","1.0.1i-r2","1.0.1i-r3","1.0.1j-r0","1.0.1k-r0","1.0.1l-r0","1.0.2-r0","1.0.2a-r0","1.0.2a-r1","1.0.2b-r0","1.0.2c-r0","1.0.2d-r0","1.0.2e-r0","1.0.2f-r0","1.0.2g-r0","1.0.2h-r0","1.0.2h-r1","1.0.2h-r2","1.0.2h-r3","1.0.2h-r4","1.0.2i-r0","1.0.2j-r0","1.0.2k-r0","1.0.2m-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-3737.json"}},{"package":{"name":"openssl","ecosystem":"Alpine:v3.4","purl":"pkg:apk/alpine/openssl?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2n-r0"}]}],"versions":["0.9.8i-r0","0.9.8j-r0","0.9.8k-r0","0.9.8k-r1","0.9.8k-r2","0.9.8k-r3","0.9.8k-r4","0.9.8k-r5","0.9.8k-r6","0.9.8k-r7","0.9.8l-r0","0.9.8l-r1","0.9.8m-r0","0.9.8n-r0","0.9.8n-r1","1.0.0-r0","1.0.0a-r0","1.0.0a-r1","1.0.0a-r2","1.0.0a-r3","1.0.0a-r4","1.0.0b-r0","1.0.0c-r0","1.0.0d-r0","1.0.0e-r0","1.0.0f-r0","1.0.0g-r0","1.0.0h-r0","1.0.1-r0","1.0.1a-r0","1.0.1b-r0","1.0.1c-r0","1.0.1c-r1","1.0.1c-r2","1.0.1c-r3","1.0.1d-r0","1.0.1d-r1","1.0.1e-r0","1.0.1e-r1","1.0.1e-r2","1.0.1e-r3","1.0.1e-r4","1.0.1e-r5","1.0.1e-r6","1.0.1e-r7","1.0.1f-r0","1.0.1g-r0","1.0.1g-r1","1.0.1g-r2","1.0.1g-r3","1.0.1h-r0","1.0.1i-r0","1.0.1i-r1","1.0.1i-r2","1.0.1i-r3","1.0.1j-r0","1.0.1k-r0","1.0.1l-r0","1.0.2-r0","1.0.2a-r0","1.0.2a-r1","1.0.2b-r0","1.0.2c-r0","1.0.2d-r0","1.0.2e-r0","1.0.2e-r1","1.0.2f-r0","1.0.2f-r1","1.0.2f-r2","1.0.2g-r0","1.0.2g-r1","1.0.2g-r2","1.0.2g-r3","1.0.2h-r0","1.0.2h-r1","1.0.2h-r2","1.0.2h-r3","1.0.2h-r4","1.0.2i-r0","1.0.2j-r0","1.0.2k-r0","1.0.2m-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-3737.json"}},{"package":{"name":"openssl","ecosystem":"Alpine:v3.5","purl":"pkg:apk/alpine/openssl?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2n-r0"}]}],"versions":["0.9.8i-r0","0.9.8j-r0","0.9.8k-r0","0.9.8k-r1","0.9.8k-r2","0.9.8k-r3","0.9.8k-r4","0.9.8k-r5","0.9.8k-r6","0.9.8k-r7","0.9.8l-r0","0.9.8l-r1","0.9.8m-r0","0.9.8n-r0","0.9.8n-r1","1.0.0-r0","1.0.0a-r0","1.0.0a-r1","1.0.0a-r2","1.0.0a-r3","1.0.0a-r4","1.0.0b-r0","1.0.0c-r0","1.0.0d-r0","1.0.0e-r0","1.0.0f-r0","1.0.0g-r0","1.0.0h-r0","1.0.1-r0","1.0.1a-r0","1.0.1b-r0","1.0.1c-r0","1.0.1c-r1","1.0.1c-r2","1.0.1c-r3","1.0.1d-r0","1.0.1d-r1","1.0.1e-r0","1.0.1e-r1","1.0.1e-r2","1.0.1e-r3","1.0.1e-r4","1.0.1e-r5","1.0.1e-r6","1.0.1e-r7","1.0.1f-r0","1.0.1g-r0","1.0.1g-r1","1.0.1g-r2","1.0.1g-r3","1.0.1h-r0","1.0.1i-r0","1.0.1i-r1","1.0.1i-r2","1.0.1i-r3","1.0.1j-r0","1.0.1k-r0","1.0.1l-r0","1.0.2-r0","1.0.2a-r0","1.0.2a-r1","1.0.2b-r0","1.0.2c-r0","1.0.2d-r0","1.0.2e-r0","1.0.2e-r1","1.0.2f-r0","1.0.2f-r1","1.0.2f-r2","1.0.2g-r0","1.0.2g-r1","1.0.2g-r2","1.0.2g-r3","1.0.2h-r0","1.0.2h-r1","1.0.2h-r2","1.0.2h-r3","1.0.2h-r4","1.0.2i-r0","1.0.2j-r0","1.0.2j-r1","1.0.2j-r2","1.0.2k-r0","1.0.2m-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-3737.json"}},{"package":{"name":"openssl","ecosystem":"Alpine:v3.6","purl":"pkg:apk/alpine/openssl?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2n-r0"}]}],"versions":["0.9.8i-r0","0.9.8j-r0","0.9.8k-r0","0.9.8k-r1","0.9.8k-r2","0.9.8k-r3","0.9.8k-r4","0.9.8k-r5","0.9.8k-r6","0.9.8k-r7","0.9.8l-r0","0.9.8l-r1","0.9.8m-r0","0.9.8n-r0","0.9.8n-r1","1.0.0-r0","1.0.0a-r0","1.0.0a-r1","1.0.0a-r2","1.0.0a-r3","1.0.0a-r4","1.0.0b-r0","1.0.0c-r0","1.0.0d-r0","1.0.0e-r0","1.0.0f-r0","1.0.0g-r0","1.0.0h-r0","1.0.1-r0","1.0.1a-r0","1.0.1b-r0","1.0.1c-r0","1.0.1c-r1","1.0.1c-r2","1.0.1c-r3","1.0.1d-r0","1.0.1d-r1","1.0.1e-r0","1.0.1e-r1","1.0.1e-r2","1.0.1e-r3","1.0.1e-r4","1.0.1e-r5","1.0.1e-r6","1.0.1e-r7","1.0.1f-r0","1.0.1g-r0","1.0.1g-r1","1.0.1g-r2","1.0.1g-r3","1.0.1h-r0","1.0.1i-r0","1.0.1i-r1","1.0.1i-r2","1.0.1i-r3","1.0.1j-r0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