From: Lee Chee Yang <[email protected]> Signed-off-by: Lee Chee Yang <[email protected]> Signed-off-by: Steve Sakoman <[email protected]> --- .../xserver-xorg/CVE-2020-14347.patch | 38 +++++++++++++++++++ .../xorg-xserver/xserver-xorg_1.20.8.bb | 1 + 2 files changed, 39 insertions(+) create mode 100644 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..cf3f5f9417 --- /dev/null +++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg/CVE-2020-14347.patch @@ -0,0 +1,38 @@ +From aac28e162e5108510065ad4c323affd6deffd816 Mon Sep 17 00:00:00 2001 +From: Matthieu Herrb <[email protected]> +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 <[email protected]> +Reviewed-by: Alan Coopersmith <[email protected]> + + +Upstream-Status: Backport [https://gitlab.freedesktop.org/xorg/xserver/-/commit/aac28e162e5108510065ad4c323affd6deffd816] +CVE: CVE-2020-14347 +Signed-off-by: Chee Yang Lee <[email protected]> +--- + dix/pixmap.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/dix/pixmap.c b/dix/pixmap.c +index 1186d7dbbf..5a0146bbb6 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; + +-- +GitLab + diff --git a/meta/recipes-graphics/xorg-xserver/xserver-xorg_1.20.8.bb b/meta/recipes-graphics/xorg-xserver/xserver-xorg_1.20.8.bb index 3f7fbe85b8..5101134538 100644 --- a/meta/recipes-graphics/xorg-xserver/xserver-xorg_1.20.8.bb +++ b/meta/recipes-graphics/xorg-xserver/xserver-xorg_1.20.8.bb @@ -5,6 +5,7 @@ SRC_URI += "file://0001-xf86pciBus.c-use-Intel-ddx-only-for-pre-gen4-hardwar.pat file://0001-test-xtest-Initialize-array-with-braces.patch \ file://sdksyms-no-build-path.patch \ file://0001-drmmode_display.c-add-missing-mi.h-include.patch \ + file://CVE-2020-14347.patch \ " SRC_URI[md5sum] = "a770aec600116444a953ff632f51f839" SRC_URI[sha256sum] = "d17b646bee4ba0fb7850c1cc55b18e3e8513ed5c02bdf38da7e107f84e2d0146" -- 2.17.1
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