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openssl-1_1.26257
CVE-2021-3711-3-Check-the-plaintext-buffer-is-l...
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File CVE-2021-3711-3-Check-the-plaintext-buffer-is-large-enough-when-decr.patch of Package openssl-1_1.26257
Index: openssl-1.1.1d/crypto/sm2/sm2_crypt.c =================================================================== --- openssl-1.1.1d.orig/crypto/sm2/sm2_crypt.c +++ openssl-1.1.1d/crypto/sm2/sm2_crypt.c @@ -294,6 +294,10 @@ int sm2_decrypt(const EC_KEY *key, C2 = sm2_ctext->C2->data; C3 = sm2_ctext->C3->data; msg_len = sm2_ctext->C2->length; + if (*ptext_len < (size_t)msg_len) { + SM2err(SM2_F_SM2_DECRYPT, SM2_R_BUFFER_TOO_SMALL); + goto done; + } ctx = BN_CTX_new(); if (ctx == NULL) {
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