fetchmail/fetchmail-6.3.8-CVE-2008-2711.patch
2008-06-27 09:50:26 +00:00

54 lines
1.6 KiB
Diff

diff -up fetchmail-6.3.8/report.c_old fetchmail-6.3.8/report.c
--- fetchmail-6.3.8/report.c_old 2008-06-27 11:38:59.000000000 +0200
+++ fetchmail-6.3.8/report.c 2008-06-27 11:39:22.000000000 +0200
@@ -238,11 +238,17 @@ report_build (FILE *errfp, message, va_a
rep_ensuresize();
#if defined(VA_START)
- VA_START (args, message);
for ( ; ; )
{
+ /*
+ * args has to be initialized before every call of vsnprintf(),
+ * because vsnprintf() invokes va_arg macro and thus args is
+ * undefined after the call.
+ */
+ VA_START(args, message);
n = vsnprintf (partial_message + partial_message_size_used, partial_message_size - partial_message_size_used,
message, args);
+ va_end (args);
if (n >= 0
&& (unsigned)n < partial_message_size - partial_message_size_used)
@@ -254,7 +260,6 @@ report_build (FILE *errfp, message, va_a
partial_message_size += 2048;
partial_message = REALLOC (partial_message, partial_message_size);
}
- va_end (args);
#else
for ( ; ; )
{
@@ -304,12 +309,13 @@ report_complete (FILE *errfp, message, v
rep_ensuresize();
#if defined(VA_START)
- VA_START (args, message);
for ( ; ; )
{
+ VA_START(args, message);
n = vsnprintf (partial_message + partial_message_size_used,
partial_message_size - partial_message_size_used,
message, args);
+ va_end(args);
/* old glibc versions return -1 for truncation */
if (n >= 0
@@ -322,7 +328,6 @@ report_complete (FILE *errfp, message, v
partial_message_size += 2048;
partial_message = REALLOC (partial_message, partial_message_size);
}
- va_end (args);
#else
for ( ; ; )
{