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early-access version 2698

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pineappleEA
2022-04-24 22:29:35 +02:00
parent c96f949832
commit caa0c2911b
486 changed files with 37806 additions and 14362 deletions
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24
externals/libressl/crypto/evp/evp_enc.c vendored
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@@ -1,4 +1,4 @@
/* $OpenBSD: evp_enc.c,v 1.43 2019/04/14 17:16:57 jsing Exp $ */
/* $OpenBSD: evp_enc.c,v 1.44 2021/02/18 19:12:29 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
@@ -56,6 +56,7 @@
* [including the GNU Public Licence.]
*/
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -337,6 +338,17 @@ EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
return 1;
} else {
j = bl - i;
/*
* Once we've processed the first j bytes from in, the
* amount of data left that is a multiple of the block
* length is (inl - j) & ~(bl - 1). Ensure this plus
* the block processed from ctx-buf doesn't overflow.
*/
if (((inl - j) & ~(bl - 1)) > INT_MAX - bl) {
EVPerror(EVP_R_TOO_LARGE);
return 0;
}
memcpy(&(ctx->buf[i]), in, j);
if (!M_do_cipher(ctx, out, ctx->buf, bl))
return 0;
@@ -451,6 +463,16 @@ EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
}
if (ctx->final_used) {
/*
* final_used is only ever set if buf_len is 0. Therefore the
* maximum length output we will ever see from EVP_EncryptUpdate
* is inl & ~(b - 1). Since final_used is set, the final output
* length is (inl & ~(b - 1)) + b. Ensure it doesn't overflow.
*/
if ((inl & ~(b - 1)) > INT_MAX - b) {
EVPerror(EVP_R_TOO_LARGE);
return 0;
}
memcpy(out, ctx->final, b);
out += b;
fix_len = 1;