libminiupnpc: add upstream security fix for CVE-2017-8798
CVE-2017-8798: Integer signedness error in MiniUPnP MiniUPnPc v1.4.20101221 through v2.0 allows remote attackers to cause a denial of service or possibly have unspecified other impact. For more details including a PoC, see: https://github.com/tintinweb/pub/tree/master/pocs/cve-2017-8798 Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
parent
e6213e8ee6
commit
a0c4cf0f96
59
package/libminiupnpc/0001-miniupnpc-Fix-CVE-2017-8798.patch
Normal file
59
package/libminiupnpc/0001-miniupnpc-Fix-CVE-2017-8798.patch
Normal file
|
@ -0,0 +1,59 @@
|
||||||
|
From f0f1f4b22d6a98536377a1bb07e7c20e4703d229 Mon Sep 17 00:00:00 2001
|
||||||
|
From: Thomas Bernard <miniupnp@free.fr>
|
||||||
|
Date: Tue, 9 May 2017 12:00:47 +0200
|
||||||
|
Subject: [PATCH] miniupnpc: Fix CVE-2017-8798
|
||||||
|
|
||||||
|
Thanks to tin/Team OSTStrom
|
||||||
|
|
||||||
|
[Peter: drop Changelog.txt modification, convert to -p1 format]
|
||||||
|
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
|
||||||
|
---
|
||||||
|
miniupnpc/miniwget.c | 12 +++++++-----
|
||||||
|
1 file changed, 9 insertions(+), 5 deletions(-)
|
||||||
|
|
||||||
|
diff --git a/miniwget.c b/miniwget.c
|
||||||
|
index 37cb47b7..1eda57c5 100644
|
||||||
|
--- a/miniwget.c
|
||||||
|
+++ b/miniwget.c
|
||||||
|
@@ -284,11 +284,12 @@ getHTTPResponse(int s, int * size, int * status_code)
|
||||||
|
goto end_of_stream;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
- bytestocopy = ((int)chunksize < (n - i))?chunksize:(unsigned int)(n - i);
|
||||||
|
+ /* it is guaranteed that (n >= i) */
|
||||||
|
+ bytestocopy = (chunksize < (unsigned int)(n - i))?chunksize:(unsigned int)(n - i);
|
||||||
|
if((content_buf_used + bytestocopy) > content_buf_len)
|
||||||
|
{
|
||||||
|
char * tmp;
|
||||||
|
- if(content_length >= (int)(content_buf_used + bytestocopy)) {
|
||||||
|
+ if((content_length >= 0) && ((unsigned int)content_length >= (content_buf_used + bytestocopy))) {
|
||||||
|
content_buf_len = content_length;
|
||||||
|
} else {
|
||||||
|
content_buf_len = content_buf_used + bytestocopy;
|
||||||
|
@@ -313,14 +314,15 @@ getHTTPResponse(int s, int * size, int * status_code)
|
||||||
|
{
|
||||||
|
/* not chunked */
|
||||||
|
if(content_length > 0
|
||||||
|
- && (int)(content_buf_used + n) > content_length) {
|
||||||
|
+ && (content_buf_used + n) > (unsigned int)content_length) {
|
||||||
|
/* skipping additional bytes */
|
||||||
|
n = content_length - content_buf_used;
|
||||||
|
}
|
||||||
|
if(content_buf_used + n > content_buf_len)
|
||||||
|
{
|
||||||
|
char * tmp;
|
||||||
|
- if(content_length >= (int)(content_buf_used + n)) {
|
||||||
|
+ if(content_length >= 0
|
||||||
|
+ && (unsigned int)content_length >= (content_buf_used + n)) {
|
||||||
|
content_buf_len = content_length;
|
||||||
|
} else {
|
||||||
|
content_buf_len = content_buf_used + n;
|
||||||
|
@@ -340,7 +342,7 @@ getHTTPResponse(int s, int * size, int * status_code)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* use the Content-Length header value if available */
|
||||||
|
- if(content_length > 0 && (int)content_buf_used >= content_length)
|
||||||
|
+ if(content_length > 0 && content_buf_used >= (unsigned int)content_length)
|
||||||
|
{
|
||||||
|
#ifdef DEBUG
|
||||||
|
printf("End of HTTP content\n");
|
Loading…
Reference in a new issue