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authorMax Rees <maxcrees@me.com>2020-03-18 15:23:00 -0500
committerMax Rees <maxcrees@me.com>2020-03-19 22:21:25 -0500
commit9c855993eb92e8d569e35698fb4f632e2e4de52c (patch)
tree9581221c8cba97f70301d9b7db416bb215ec14cc /user
parent91d7404926e640ca6663b2865ee3e125a4adead2 (diff)
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user/libvncserver: patch CVE-2019-15681 and CVE-2019-15690
Diffstat (limited to 'user')
-rw-r--r--user/libvncserver/APKBUILD14
-rw-r--r--user/libvncserver/CVE-2019-15681.patch23
-rw-r--r--user/libvncserver/CVE-2019-15690.patch36
3 files changed, 70 insertions, 3 deletions
diff --git a/user/libvncserver/APKBUILD b/user/libvncserver/APKBUILD
index 2b42311c2..7058ad208 100644
--- a/user/libvncserver/APKBUILD
+++ b/user/libvncserver/APKBUILD
@@ -3,7 +3,7 @@
# Maintainer: A. Wilcox <awilfox@adelielinux.org>
pkgname=libvncserver
pkgver=0.9.12
-pkgrel=0
+pkgrel=1
pkgdesc="Library to make writing a vnc server easy"
url="https://libvnc.github.io/"
arch="all"
@@ -15,7 +15,10 @@ depends_dev="libgcrypt-dev libjpeg-turbo-dev gnutls-dev libpng-dev
makedepends="$depends_dev cmake"
subpackages="$pkgname-dev"
source="https://github.com/LibVNC/libvncserver/archive/LibVNCServer-$pkgver.tar.gz
- CVE-2018-15127.patch"
+ CVE-2018-15127.patch
+ CVE-2019-15681.patch
+ CVE-2019-15690.patch
+ "
builddir="$srcdir"/libvncserver-LibVNCServer-$pkgver
# secfixes:
@@ -24,6 +27,9 @@ builddir="$srcdir"/libvncserver-LibVNCServer-$pkgver
# - CVE-2016-9942
# 0.9.12-r0:
# - CVE-2018-15127
+# 0.9.12-r1:
+# - CVE-2019-15681
+# - CVE-2019-15690
build() {
if [ "$CBUILD" != "$CHOST" ]; then
@@ -49,4 +55,6 @@ package() {
}
sha512sums="60ff1cc93a937d6f8f97449bc58b763095846207112f7b1b3c43eb2d74448b595d6da949903a764bd484ee54e38ff6277e882adbe965dd6d26ba15ef6ff6fcb8 LibVNCServer-0.9.12.tar.gz
-8b5b6742e6c3a181c60652484b15ec42cc0a3acc1e82cef38e82b61f43f1de456d09731976f4e5dfab44abf3e551e22aaf4300cb8418cd8e136d705fcb2a7dbe CVE-2018-15127.patch"
+8b5b6742e6c3a181c60652484b15ec42cc0a3acc1e82cef38e82b61f43f1de456d09731976f4e5dfab44abf3e551e22aaf4300cb8418cd8e136d705fcb2a7dbe CVE-2018-15127.patch
+5ecb5a26813f3f07440ef6c54eebaca4e9b4f7c1cf2ba13375e3b23b950a9b818d068d4eef5532d7ea4d7ae084c4356af7257c45426101ff51afe2b7da338a1f CVE-2019-15681.patch
+52f62a65c3e91b7c7a11b5ad6e1432d697e1314bf6c938b5cb0c9cc8bdffbf1c25612c33e05282c11d59c6523e208b882f963fca8bcd34a5c72dd476427e7542 CVE-2019-15690.patch"
diff --git a/user/libvncserver/CVE-2019-15681.patch b/user/libvncserver/CVE-2019-15681.patch
new file mode 100644
index 000000000..e328d8792
--- /dev/null
+++ b/user/libvncserver/CVE-2019-15681.patch
@@ -0,0 +1,23 @@
+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.
+---
+ 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;
diff --git a/user/libvncserver/CVE-2019-15690.patch b/user/libvncserver/CVE-2019-15690.patch
new file mode 100644
index 000000000..7fe36e454
--- /dev/null
+++ b/user/libvncserver/CVE-2019-15690.patch
@@ -0,0 +1,36 @@
+From 54220248886b5001fbbb9fa73c4e1a2cb9413fed Mon Sep 17 00:00:00 2001
+From: Christian Beier <dontmind@freeshell.org>
+Date: Sun, 17 Nov 2019 17:18:35 +0100
+Subject: [PATCH] libvncclient/cursor: limit width/height input values
+
+Avoids a possible heap overflow reported by Pavel Cheremushkin
+<Pavel.Cheremushkin@kaspersky.com>.
+
+re #275
+---
+ libvncclient/cursor.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/libvncclient/cursor.c b/libvncclient/cursor.c
+index 67f45726..40ffb3b0 100644
+--- a/libvncclient/cursor.c
++++ b/libvncclient/cursor.c
+@@ -28,6 +28,8 @@
+ #define OPER_SAVE 0
+ #define OPER_RESTORE 1
+
++#define MAX_CURSOR_SIZE 1024
++
+ #define RGB24_TO_PIXEL(bpp,r,g,b) \
+ ((((uint##bpp##_t)(r) & 0xFF) * client->format.redMax + 127) / 255 \
+ << client->format.redShift | \
+@@ -54,6 +56,9 @@ rfbBool HandleCursorShape(rfbClient* client,int xhot, int yhot, int width, int h
+ if (width * height == 0)
+ return TRUE;
+
++ if (width >= MAX_CURSOR_SIZE || height >= MAX_CURSOR_SIZE)
++ return FALSE;
++
+ /* Allocate memory for pixel data and temporary mask data. */
+ if(client->rcSource)
+ free(client->rcSource);