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diff -up openssl-1.0.2a/crypto/evp/bio_enc.c.enc-fail openssl-1.0.2a/crypto/evp/bio_enc.c
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--- openssl-1.0.2a/crypto/evp/bio_enc.c.enc-fail 2015-03-19 14:19:00.000000000 +0100
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+++ openssl-1.0.2a/crypto/evp/bio_enc.c 2015-04-22 18:10:06.491819948 +0200
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@@ -201,10 +201,14 @@ static int enc_read(BIO *b, char *out, i
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break;
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}
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} else {
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- EVP_CipherUpdate(&(ctx->cipher),
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- (unsigned char *)ctx->buf, &ctx->buf_len,
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- (unsigned char *)&(ctx->buf[BUF_OFFSET]), i);
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- ctx->cont = 1;
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+ if (!EVP_CipherUpdate(&(ctx->cipher),
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+ (unsigned char *)ctx->buf, &ctx->buf_len,
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+ (unsigned char *)&(ctx->buf[BUF_OFFSET]),
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+ i)) {
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+ ctx->ok = 0;
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+ ctx->cont = 0;
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+ } else
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+ ctx->cont = 1;
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/*
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* Note: it is possible for EVP_CipherUpdate to decrypt zero
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* bytes because this is or looks like the final block: if this
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@@ -260,9 +264,13 @@ static int enc_write(BIO *b, const char
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ctx->buf_off = 0;
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while (inl > 0) {
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n = (inl > ENC_BLOCK_SIZE) ? ENC_BLOCK_SIZE : inl;
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- EVP_CipherUpdate(&(ctx->cipher),
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- (unsigned char *)ctx->buf, &ctx->buf_len,
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- (unsigned char *)in, n);
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+ if (!EVP_CipherUpdate(&(ctx->cipher),
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+ (unsigned char *)ctx->buf, &ctx->buf_len,
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+ (unsigned char *)in, n)) {
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+ BIO_copy_next_retry(b);
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+ ctx->ok = 0;
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+ return ret - inl;
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+ }
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inl -= n;
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in += n;
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@@ -298,8 +306,9 @@ static long enc_ctrl(BIO *b, int cmd, lo
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case BIO_CTRL_RESET:
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ctx->ok = 1;
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ctx->finished = 0;
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- EVP_CipherInit_ex(&(ctx->cipher), NULL, NULL, NULL, NULL,
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- ctx->cipher.encrypt);
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+ if (!EVP_CipherInit_ex(&(ctx->cipher), NULL, NULL, NULL, NULL,
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+ ctx->cipher.encrypt))
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+ ctx->ok = 0;
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ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
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break;
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case BIO_CTRL_EOF: /* More to read */
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@@ -421,7 +430,8 @@ void BIO_set_cipher(BIO *b, const EVP_CI
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b->init = 1;
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ctx = (BIO_ENC_CTX *)b->ptr;
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- EVP_CipherInit_ex(&(ctx->cipher), c, NULL, k, i, e);
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+ if (!EVP_CipherInit_ex(&(ctx->cipher), c, NULL, k, i, e))
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+ ctx->ok = 0;
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if (b->callback != NULL)
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b->callback(b, BIO_CB_CTRL, (const char *)c, BIO_CTRL_SET, e, 1L);
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