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xorg-server: update to 1.20.3.
fixes: CVE-2018-14665
This commit is contained in:
parent
a8989eba54
commit
5626dbfb88
3 changed files with 3 additions and 80 deletions
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@ -1,51 +0,0 @@
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From 8a59e3b7dbb30532a7c3769c555e00d7c4301170 Mon Sep 17 00:00:00 2001
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From: Matthieu Herrb <matthieu@herrb.eu>
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Date: Tue, 23 Oct 2018 21:29:08 +0200
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Subject: [PATCH] Disable -logfile and -modulepath when running with elevated
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privileges
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Could cause privilege elevation and/or arbitrary files overwrite, when
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the X server is running with elevated privileges (ie when Xorg is
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installed with the setuid bit set and started by a non-root user).
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CVE-2018-14665
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Issue reported by Narendra Shinde and Red Hat.
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Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
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Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
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Reviewed-by: Adam Jackson <ajax@redhat.com>
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(cherry picked from commit 50c0cf885a6e91c0ea71fb49fa8f1b7c86fe330e)
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---
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hw/xfree86/common/xf86Init.c | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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diff --git ./hw/xfree86/common/xf86Init.c b/hw/xfree86/common/xf86Init.c
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index 3c5cc7097..cabf8716b 100644
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--- ./hw/xfree86/common/xf86Init.c
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+++ ./hw/xfree86/common/xf86Init.c
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@@ -1027,14 +1027,18 @@ ddxProcessArgument(int argc, char **argv, int i)
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/* First the options that are not allowed with elevated privileges */
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if (!strcmp(argv[i], "-modulepath")) {
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CHECK_FOR_REQUIRED_ARGUMENT();
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- xf86CheckPrivs(argv[i], argv[i + 1]);
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+ if (xf86PrivsElevated())
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+ FatalError("\nInvalid argument -modulepath "
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+ "with elevated privileges\n");
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xf86ModulePath = argv[i + 1];
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xf86ModPathFrom = X_CMDLINE;
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return 2;
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}
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if (!strcmp(argv[i], "-logfile")) {
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CHECK_FOR_REQUIRED_ARGUMENT();
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- xf86CheckPrivs(argv[i], argv[i + 1]);
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+ if (xf86PrivsElevated())
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+ FatalError("\nInvalid argument -logfile "
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+ "with elevated privileges\n");
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xf86LogFile = argv[i + 1];
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xf86LogFileFrom = X_CMDLINE;
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return 2;
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--
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2.18.1
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@ -1,26 +0,0 @@
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source upstream master:
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Misplaced parenthesis caused us to compare the sizeof,
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not the readlink return value.
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https://gitlab.freedesktop.org/xorg/xserver/commit/bd5fe7593fd0df236f3b2be1f062166ddba7d67c
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ensure the readlink buffer is null-terminated
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https://gitlab.freedesktop.org/xorg/xserver/commit/71703e4e8bd00719eefad53c2ed6c604079f87ea
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--- hw/xfree86/fbdevhw/fbdevhw.c.orig
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+++ hw/xfree86/fbdevhw/fbdevhw.c
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@@ -331,12 +331,12 @@
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/* only touch non-PCI devices on this path */
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{
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- char buf[PATH_MAX];
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+ char buf[PATH_MAX] = {0};
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char *sysfs_path = NULL;
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char *node = strrchr(dev, '/') + 1;
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if (asprintf(&sysfs_path, "/sys/class/graphics/%s", node) < 0 ||
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- readlink(sysfs_path, buf, sizeof(buf) < 0) ||
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+ readlink(sysfs_path, buf, sizeof(buf) - 1) < 0 ||
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strstr(buf, "devices/pci")) {
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free(sysfs_path);
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close(fd);
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@ -1,7 +1,7 @@
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# Template file for 'xorg-server'
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# Template file for 'xorg-server'
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pkgname=xorg-server
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pkgname=xorg-server
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version=1.20.2
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version=1.20.3
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revision=3
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revision=1
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build_style=meson
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build_style=meson
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configure_args="-Dipv6=true -Dxorg=true -Dxnest=true -Dxephyr=true
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configure_args="-Dipv6=true -Dxorg=true -Dxnest=true -Dxephyr=true
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-Dxvfb=true -Dhal=false -Dudev=true -Dxkb_dir=/usr/share/X11/xkb
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-Dxvfb=true -Dhal=false -Dudev=true -Dxkb_dir=/usr/share/X11/xkb
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@ -22,7 +22,7 @@ maintainer="Juan RP <xtraeme@voidlinux.eu>"
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license="MIT, BSD-3-Clause"
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license="MIT, BSD-3-Clause"
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homepage="https://xorg.freedesktop.org"
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homepage="https://xorg.freedesktop.org"
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distfiles="${XORG_SITE}/xserver/${pkgname}-${version}.tar.bz2"
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distfiles="${XORG_SITE}/xserver/${pkgname}-${version}.tar.bz2"
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checksum=0ed5f7bc48f22f54e1ae0229ad6f35a521da4232d9d5529d7cebb5e79b3ccee2
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checksum=1b3ce466c12cacbe2252b3ad5b0ed561972eef9d09e75900d65fb1e21f9201de
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lib32disabled=yes
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lib32disabled=yes
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provides="xserver-abi-extension-10_1 xserver-abi-input-24_1 xserver-abi-video-24_1 xf86-video-modesetting-1_1"
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provides="xserver-abi-extension-10_1 xserver-abi-input-24_1 xserver-abi-video-24_1 xf86-video-modesetting-1_1"
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replaces="xf86-video-modesetting>=0"
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replaces="xf86-video-modesetting>=0"
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