mirror of
https://github.com/norandom/OpenUltraSAST.git
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Marius CiepluchandClaude Fable 5.1
c3e841003c
Tasks 3.3 and 4.1. - vfc curl and openssl-cve-2021-3449 excerpts re-harvested through the shared library: whole functions with upstream_start headers, the vendored key redacted code-safely, no truncated bodies. - vfc/recipes.toml carries mode, fix_path and function anchors; training/manifest.jsonl regenerated. - Juliet CWE-121 strcpy pair gets its buffer declarations back so the vulnerable side is a real overflow again. Co-Authored-By: Claude Fable 5.1 <[email protected]> Claude-Session: https://claude.ai/code/session_01T7XD7x5KonMdmGRkp63EQG
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* Provenance: curl/curl gtls_shutdown (fixed).
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* repo: curl/curl
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* commit: f18af4f874cecab82a9797e8c7541e0990c7a64c
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* parent: 7e92d12b4e6911f424678a133b19de670e183a59
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* commit_url: https://github.com/curl/curl/commit/f18af4f874cecab82a9797e8c7541e0990c7a64c
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* cve: CVE-2022-27782
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* license: curl
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* function: gtls_shutdown
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* relpath: lib/vtls/gtls.c
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* provenance: human
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* mechanism: other
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*/
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static int gtls_shutdown(struct Curl_easy *data, struct connectdata *conn,
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int sockindex)
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{
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struct ssl_connect_data *connssl = &conn->ssl[sockindex];
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struct ssl_backend_data *backend = connssl->backend;
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int retval = 0;
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DEBUGASSERT(backend);
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#ifndef CURL_DISABLE_FTP
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/* This has only been tested on the proftpd server, and the mod_tls code
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sends a close notify alert without waiting for a close notify alert in
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response. Thus we wait for a close notify alert from the server, but
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we do not send one. Let's hope other servers do the same... */
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if(data->set.ftp_ccc == CURLFTPSSL_CCC_ACTIVE)
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gnutls_bye(backend->session, GNUTLS_SHUT_WR);
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#endif
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if(backend->session) {
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ssize_t result;
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bool done = FALSE;
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char buf[120];
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while(!done) {
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int what = SOCKET_READABLE(conn->sock[sockindex],
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SSL_SHUTDOWN_TIMEOUT);
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if(what > 0) {
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/* Something to read, let's do it and hope that it is the close
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notify alert from the server */
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result = gnutls_record_recv(backend->session,
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buf, sizeof(buf));
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switch(result) {
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case 0:
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/* This is the expected response. There was no data but only
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the close notify alert */
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done = TRUE;
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break;
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case GNUTLS_E_AGAIN:
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case GNUTLS_E_INTERRUPTED:
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infof(data, "GNUTLS_E_AGAIN || GNUTLS_E_INTERRUPTED");
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break;
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default:
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retval = -1;
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done = TRUE;
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break;
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}
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}
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else if(0 == what) {
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/* timeout */
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failf(data, "SSL shutdown timeout");
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done = TRUE;
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}
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else {
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/* anything that gets here is fatally bad */
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failf(data, "select/poll on SSL socket, errno: %d", SOCKERRNO);
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retval = -1;
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done = TRUE;
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}
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}
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gnutls_deinit(backend->session);
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}
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gnutls_certificate_free_credentials(backend->cred);
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#ifdef USE_GNUTLS_SRP
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if(SSL_SET_OPTION(primary.authtype) == CURL_TLSAUTH_SRP
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&& SSL_SET_OPTION(primary.username) != NULL)
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gnutls_srp_free_client_credentials(backend->srp_client_cred);
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#endif
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backend->cred = NULL;
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backend->session = NULL;
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return retval;
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}
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