You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.9 KiB
43 lines
1.9 KiB
From 573e86d7e9f0038044d5cba2a1a543e24b063a79 Mon Sep 17 00:00:00 2001 |
|
From: Aleksander Adamowski <olo@fb.com> |
|
Date: Mon, 11 Jan 2016 15:26:41 -0800 |
|
Subject: [PATCH] Fix miscalculated buffer size and uses of size-unlimited |
|
sprintf() function. |
|
|
|
Not sure if this results in an exploitable buffer overflow, probably not |
|
since the the int value is likely sanitized somewhere earlier and it's |
|
being put through a bit mask shortly before being used. |
|
|
|
Cherry-picked from: 13f5402c6b734ed4c2b3e8b7c3d3bf6d815e7661 |
|
Related: #1318994 |
|
--- |
|
src/journal/journald-syslog.c | 6 +++--- |
|
1 file changed, 3 insertions(+), 3 deletions(-) |
|
|
|
diff --git a/src/journal/journald-syslog.c b/src/journal/journald-syslog.c |
|
index 8602b4a95d..b499a0d381 100644 |
|
--- a/src/journal/journald-syslog.c |
|
+++ b/src/journal/journald-syslog.c |
|
@@ -317,7 +317,7 @@ void server_process_syslog_message( |
|
size_t label_len) { |
|
|
|
char syslog_priority[sizeof("PRIORITY=") + DECIMAL_STR_MAX(int)], |
|
- syslog_facility[sizeof("SYSLOG_FACILITY") + DECIMAL_STR_MAX(int)]; |
|
+ syslog_facility[sizeof("SYSLOG_FACILITY=") + DECIMAL_STR_MAX(int)]; |
|
const char *message = NULL, *syslog_identifier = NULL, *syslog_pid = NULL; |
|
struct iovec iovec[N_IOVEC_META_FIELDS + 6]; |
|
unsigned n = 0; |
|
@@ -348,11 +348,11 @@ void server_process_syslog_message( |
|
|
|
IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=syslog"); |
|
|
|
- sprintf(syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK); |
|
+ snprintf(syslog_priority, sizeof(syslog_priority), "PRIORITY=%i", priority & LOG_PRIMASK); |
|
IOVEC_SET_STRING(iovec[n++], syslog_priority); |
|
|
|
if (priority & LOG_FACMASK) { |
|
- sprintf(syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)); |
|
+ snprintf(syslog_facility, sizeof(syslog_facility), "SYSLOG_FACILITY=%i", LOG_FAC(priority)); |
|
IOVEC_SET_STRING(iovec[n++], syslog_facility); |
|
} |
|
|
|
|