From f65146f02f898c01cf79263abdee5afc3c062046 Mon Sep 17 00:00:00 2001 From: Li Zhou Date: Tue, 11 Aug 2020 11:43:11 +0800 Subject: xserver-xorg: Security Advisory - xserver-xorg - CVE-2020-14347 Backport patch from to solve CVE-2020-14347. (From OE-Core rev: 850b454c090523f7f7503d4472fda77a4b2fc7a0) Signed-off-by: Li Zhou Signed-off-by: Anuj Mittal Signed-off-by: Richard Purdie --- .../xorg-xserver/xserver-xorg/CVE-2020-14347.patch | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2020-14347.patch (limited to 'meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2020-14347.patch') diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2020-14347.patch b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2020-14347.patch new file mode 100644 index 0000000000..20a604869b --- /dev/null +++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2020-14347.patch @@ -0,0 +1,37 @@ +From aac28e162e5108510065ad4c323affd6deffd816 Mon Sep 17 00:00:00 2001 +From: Matthieu Herrb +Date: Sat, 25 Jul 2020 19:33:50 +0200 +Subject: [PATCH] fix for ZDI-11426 + +Avoid leaking un-initalized memory to clients by zeroing the +whole pixmap on initial allocation. + +This vulnerability was discovered by: +Jan-Niklas Sohn working with Trend Micro Zero Day Initiative + +Signed-off-by: Matthieu Herrb +Reviewed-by: Alan Coopersmith + +Upstream-Status: Backport +CVE: CVE-2020-14347 +Signed-off-by: Li Zhou +--- + dix/pixmap.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/dix/pixmap.c b/dix/pixmap.c +index 1186d7dbb..5a0146bbb 100644 +--- a/dix/pixmap.c ++++ b/dix/pixmap.c +@@ -116,7 +116,7 @@ AllocatePixmap(ScreenPtr pScreen, int pixDataSize) + if (pScreen->totalPixmapSize > ((size_t) - 1) - pixDataSize) + return NullPixmap; + +- pPixmap = malloc(pScreen->totalPixmapSize + pixDataSize); ++ pPixmap = calloc(1, pScreen->totalPixmapSize + pixDataSize); + if (!pPixmap) + return NullPixmap; + +-- +2.17.1 + -- cgit v1.2.3-54-g00ecf