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Fix potential buffer overflow in suported_curves_ext

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Manuel Pégourié-Gonnard 2014-01-23 17:27:10 +01:00
parent 8505d50d4b
commit 8e205fc0bc
1 changed files with 1 additions and 3 deletions
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4
library/ssl_cli.c
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@ -231,7 +231,7 @@ static void ssl_write_supported_elliptic_curves_ext( ssl_context *ssl,
size_t *olen ) size_t *olen )
{ {
unsigned char *p = buf; unsigned char *p = buf;
unsigned char elliptic_curve_list[20]; unsigned char *elliptic_curve_list = p + 6;
size_t elliptic_curve_len = 0; size_t elliptic_curve_len = 0;
const ecp_curve_info *curve; const ecp_curve_info *curve;
((void) ssl); ((void) ssl);
@ -260,8 +260,6 @@ static void ssl_write_supported_elliptic_curves_ext( ssl_context *ssl,
*p++ = (unsigned char)( ( ( elliptic_curve_len ) >> 8 ) & 0xFF ); *p++ = (unsigned char)( ( ( elliptic_curve_len ) >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( ( elliptic_curve_len ) ) & 0xFF ); *p++ = (unsigned char)( ( ( elliptic_curve_len ) ) & 0xFF );
memcpy( p, elliptic_curve_list, elliptic_curve_len );
*olen = 6 + elliptic_curve_len; *olen = 6 + elliptic_curve_len;
} }