exim/exim-4.89-CVE-2017-16944.patch

42 lines
1.3 KiB
Diff

diff --git a/src/receive.c b/src/receive.c
index 3246621..f19c8b9 100644
--- a/src/receive.c
+++ b/src/receive.c
@@ -1827,7 +1827,7 @@ for (;;)
prevent further reading), and break out of the loop, having freed the
empty header, and set next = NULL to indicate no data line. */
- if (ptr == 0 && ch == '.' && (smtp_input || dot_ends))
+ if (ptr == 0 && ch == '.' && dot_ends)
{
ch = (receive_getc)(GETC_BUFFER_UNLIMITED);
if (ch == '\r')
diff --git a/src/smtp_in.c b/src/smtp_in.c
index 1b45f84..0207540 100644
--- a/src/smtp_in.c
+++ b/src/smtp_in.c
@@ -4955,16 +4955,23 @@ while (done <= 0)
DEBUG(D_receive) debug_printf("chunking state %d, %d bytes\n",
(int)chunking_state, chunking_data_left);
+ /* push the current receive_* function on the "stack", and
+ replace them by bdat_getc(), which in turn will use the lwr_receive_*
+ functions to do the dirty work. */
lwr_receive_getc = receive_getc;
lwr_receive_ungetc = receive_ungetc;
+
receive_getc = bdat_getc;
receive_ungetc = bdat_ungetc;
+ dot_ends = FALSE;
+
goto DATA_BDAT;
}
case DATA_CMD:
HAD(SCH_DATA);
+ dot_ends = TRUE;
DATA_BDAT: /* Common code for DATA and BDAT */
if (!discarded && recipients_count <= 0)