mirror of
https://github.com/norandom/OpenUltraSAST.git
synced 2026-10-18 12:39:28 +00:00
53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
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/* Provenance: openssl/openssl selfsigned_verify_cb (fixed).
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* repo: openssl/openssl
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* commit: c2765d53c2649b56bc1ca1bb799e42002953056a
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* parent: d5030cdf32d6cd27bd964a0cb7aed2b7cb713369
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* commit_url: https://github.com/openssl/openssl/commit/c2765d53c2649b56bc1ca1bb799e42002953056a
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* cve: CVE-2026-42769
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* license: Apache-2.0
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* function: selfsigned_verify_cb
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* relpath: crypto/cmp/cmp_genm.c
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*/
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static int selfsigned_verify_cb(int ok, X509_STORE_CTX *store_ctx)
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{
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if (ok == 0
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&& X509_STORE_CTX_get_error_depth(store_ctx) == 0
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&& X509_STORE_CTX_get_error(store_ctx)
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== X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) {
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/* in this case, custom chain building */
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int i;
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STACK_OF(X509) *trust;
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STACK_OF(X509) *chain = X509_STORE_CTX_get0_chain(store_ctx);
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STACK_OF(X509) *untrusted = X509_STORE_CTX_get0_untrusted(store_ctx);
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X509_STORE_CTX_check_issued_fn check_issued = X509_STORE_CTX_get_check_issued(store_ctx);
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X509 *cert = sk_X509_value(chain, 0); /* target cert */
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X509 *issuer;
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for (i = 0; i < sk_X509_num(untrusted); i++) {
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cert = sk_X509_value(untrusted, i);
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if (!X509_add_cert(chain, cert, X509_ADD_FLAG_UP_REF))
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return 0;
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}
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trust = X509_STORE_get1_all_certs(X509_STORE_CTX_get0_store(store_ctx));
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for (i = 0; i < sk_X509_num(trust); i++) {
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issuer = sk_X509_value(trust, i);
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if ((*check_issued)(store_ctx, cert, issuer)) {
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if (X509_add_cert(chain, issuer, X509_ADD_FLAG_UP_REF))
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ok = 1;
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break;
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}
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}
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sk_X509_pop_free(trust, X509_free);
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return ok;
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} else {
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X509_STORE *ts = X509_STORE_CTX_get0_store(store_ctx);
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X509_STORE_CTX_verify_cb verify_cb;
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if (ts == NULL || (verify_cb = X509_STORE_get_verify_cb(ts)) == NULL)
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return ok;
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return (*verify_cb)(ok, store_ctx);
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}
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}
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