mirror of
https://github.com/godotengine/buildroot.git
synced 2026-01-04 06:10:16 +03:00
318323ce69
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a
memory leak (CWE-655) in VNC server code, which allow an attacker to
read stack memory and can be abused for information disclosure. Combined
with another vulnerability, it can be used to leak stack memory and
bypass ASLR. This attack appear to be exploitable via network
connectivity. These vulnerabilities have been fixed in commit
d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 05bf029c11)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
27 lines
1.0 KiB
Diff
27 lines
1.0 KiB
Diff
From d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a Mon Sep 17 00:00:00 2001
|
|
From: Christian Beier <dontmind@freeshell.org>
|
|
Date: Mon, 19 Aug 2019 22:32:25 +0200
|
|
Subject: [PATCH] rfbserver: don't leak stack memory to the remote
|
|
|
|
Thanks go to Pavel Cheremushkin of Kaspersky for reporting.
|
|
[Retrieved from:
|
|
https://github.com/LibVNC/libvncserver/commit/d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a]
|
|
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
|
|
---
|
|
libvncserver/rfbserver.c | 2 ++
|
|
1 file changed, 2 insertions(+)
|
|
|
|
diff --git a/libvncserver/rfbserver.c b/libvncserver/rfbserver.c
|
|
index 3bacc891..310e5487 100644
|
|
--- a/libvncserver/rfbserver.c
|
|
+++ b/libvncserver/rfbserver.c
|
|
@@ -3724,6 +3724,8 @@ rfbSendServerCutText(rfbScreenInfoPtr rfbScreen,char *str, int len)
|
|
rfbServerCutTextMsg sct;
|
|
rfbClientIteratorPtr iterator;
|
|
|
|
+ memset((char *)&sct, 0, sizeof(sct));
|
|
+
|
|
iterator = rfbGetClientIterator(rfbScreen);
|
|
while ((cl = rfbClientIteratorNext(iterator)) != NULL) {
|
|
sct.type = rfbServerCutText;
|