3 files changed, 282 insertions, 0 deletions
diff --git a/patches/source/xz/slack-desc b/patches/source/xz/slack-desc
new file mode 100644
index 00000000..30a6bb34
--- /dev/null
+++ b/patches/source/xz/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description. Line
+# up the first '|' above the ':' following the base package name, and the '|' on
+# the right side marks the last column you can put a character in. You must make
+# exactly 11 lines for the formatting to be correct. It's also customary to
+# leave one space after the ':'.
+
+  |-----handy-ruler------------------------------------------------------|
+xz: xz (compression utility based on the LZMA algorithm)
+xz:
+xz: LZMA is a general purpose compression algorithm designed by Igor
+xz: Pavlov as part of 7-Zip. It provides high compression ratio while
+xz: keeping the decompression speed fast. XZ Utils are an attempt to make
+xz: LZMA compression easy to use on free (as in freedom) operating
+xz: systems.
+xz:
+xz: The people most responsible for xz are Igor Pavlov, Ville Koskinen,
+xz: and Lasse Collin. Homepage: http://tukaani.org/xz/
+xz:
diff --git a/patches/source/xz/xz.SlackBuild b/patches/source/xz/xz.SlackBuild
new file mode 100755
index 00000000..66e70e3e
--- /dev/null
+++ b/patches/source/xz/xz.SlackBuild
@@ -0,0 +1,169 @@
+#!/bin/bash
+
+# Copyright 2009, 2010, 2011, 2012, 2018  Patrick J. Volkerding, Sebeka, MN, USA
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PKGNAM=xz
+VERSION=${VERSION:-$(echo $PKGNAM-*.tar.xz | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
+BUILD=${BUILD:-4_slack15.0}
+
+# Automatically determine the architecture we're building on:
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) export ARCH=i586 ;;
+    arm*) export ARCH=arm ;;
+    # Unless $ARCH is already set, use uname -m for all other archs:
+       *) export ARCH=$( uname -m ) ;;
+  esac
+fi
+
+# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
+# the name of the created package would be, and then exit. This information
+# could be useful to other scripts.
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
+  exit 0
+fi
+
+case "$ARCH" in
+  i586)      SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+             LIBDIRSUFFIX=""
+             ;;
+  s390)      SLKCFLAGS="-O2"
+             LIBDIRSUFFIX=""
+             ;;
+  powerpc)   SLKCFLAGS="-O2"
+             LIBDIRSUFFIX=""
+             ;;
+  x86_64)    SLKCFLAGS="-O2 -fPIC"
+             LIBDIRSUFFIX="64"
+             ;;
+  athlon-xp) SLKCFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
+             LIBDIRSUFFIX=""
+             ;;
+  arm)       SLKCFLAGS="-O2 -march=armv4 -mtune=xscale"
+             LIBDIRSUFFIX=""
+             ;;
+  armel)     SLKCFLAGS="-O2 -march=armv4t"
+             LIBDIRSUFFIX=""
+             ;;
+  *)         SLKCFLAGS="-O2"
+             LIBDIRSUFFIX=""
+             ;;
+esac
+
+NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}
+
+TMP=${TMP:-/tmp}
+PKG=$TMP/package-$PKGNAM
+rm -rf $PKG
+mkdir -p $TMP $PKG
+
+cd $TMP
+rm -rf $PKGNAM-$VERSION
+tar xvf $CWD/$PKGNAM-$VERSION.tar.xz || exit 1
+cd $PKGNAM-$VERSION
+chown -R root:root .
+find . \
+  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
+  -exec chmod 755 {} \+ -o \
+  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
+  -exec chmod 644 {} \+
+
+cat $CWD/xzgrep-ZDI-CAN-16587.patch | patch -p1 --verbose || exit 1
+
+CFLAGS="$SLKCFLAGS" \
+CXXFLAGS="$SLKCFLAGS" \
+./configure \
+  --prefix=/usr \
+  --libdir=/usr/lib${LIBDIRSUFFIX} \
+  --docdir=/usr/doc/xz-$VERSION \
+  --sysconfdir=/etc \
+  --mandir=/usr/man \
+  --enable-shared \
+  --disable-static \
+  --disable-rpath \
+  --program-prefix= \
+  --program-suffix= \
+  --build=$ARCH-slackware-linux || exit 1
+
+make $NUMJOBS || make || exit 1
+make DESTDIR=$PKG install || exit 1
+
+# Don't ship .la files:
+rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la
+
+# It might be advisable to have the libraries in /lib${LIBDIRSUFFIX}:
+mkdir -p $PKG/lib${LIBDIRSUFFIX}
+mv $PKG/usr/lib${LIBDIRSUFFIX}/liblzma.so.* $PKG/lib${LIBDIRSUFFIX}
+( cd $PKG/usr/lib${LIBDIRSUFFIX}
+  rm -f liblzma.so
+  ln -sf ../../lib${LIBDIRSUFFIX}/liblzma.so.? liblzma.so
+)
+
+# At least the xz binary should also be in /bin:
+mkdir -p $PKG/bin
+mv $PKG/usr/bin/xz $PKG/bin
+( cd $PKG/usr/bin
+  ln -sf ../../bin/xz .
+)
+
+# Strip binaries:
+( cd $PKG
+  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
+  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
+)
+
+# Compress and link manpages, if any:
+if [ -d $PKG/usr/man ]; then
+  ( cd $PKG/usr/man
+    for manpagedir in $(find . -type d -name "man*") ; do
+      ( cd $manpagedir
+        for eachpage in $( find . -type l -maxdepth 1) ; do
+          ln -s $( readlink $eachpage ).gz $eachpage.gz
+          rm $eachpage
+        done
+        gzip -9 *.?
+      )
+    done
+  )
+fi
+
+mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
+cp -a \
+  ABOUT-NLS AUTHORS COPYING* INSTALL* NEWS PACKAGERS README* THANKS \
+  $PKG/usr/doc/$PKGNAM-$VERSION
+
+# If there's a ChangeLog, installing at least part of the recent history
+# is useful, but don't let it get totally out of control:
+if [ -r ChangeLog ]; then
+  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
+  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
+  touch -r ChangeLog $DOCSDIR/ChangeLog
+fi
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $TMP/${PKGNAM}-${VERSION}-${ARCH}-${BUILD}.txz
+
diff --git a/patches/source/xz/xzgrep-ZDI-CAN-16587.patch b/patches/source/xz/xzgrep-ZDI-CAN-16587.patch
new file mode 100644
index 00000000..406ded59
--- /dev/null
+++ b/patches/source/xz/xzgrep-ZDI-CAN-16587.patch
@@ -0,0 +1,94 @@
+From 69d1b3fc29677af8ade8dc15dba83f0589cb63d6 Mon Sep 17 00:00:00 2001
+From: Lasse Collin <lasse.collin@tukaani.org>
+Date: Tue, 29 Mar 2022 19:19:12 +0300
+Subject: [PATCH] xzgrep: Fix escaping of malicious filenames (ZDI-CAN-16587).
+
+Malicious filenames can make xzgrep to write to arbitrary files
+or (with a GNU sed extension) lead to arbitrary code execution.
+
+xzgrep from XZ Utils versions up to and including 5.2.5 are
+affected. 5.3.1alpha and 5.3.2alpha are affected as well.
+This patch works for all of them.
+
+This bug was inherited from gzip's zgrep. gzip 1.12 includes
+a fix for zgrep.
+
+The issue with the old sed script is that with multiple newlines,
+the N-command will read the second line of input, then the
+s-commands will be skipped because it's not the end of the
+file yet, then a new sed cycle starts and the pattern space
+is printed and emptied. So only the last line or two get escaped.
+
+One way to fix this would be to read all lines into the pattern
+space first. However, the included fix is even simpler: All lines
+except the last line get a backslash appended at the end. To ensure
+that shell command substitution doesn't eat a possible trailing
+newline, a colon is appended to the filename before escaping.
+The colon is later used to separate the filename from the grep
+output so it is fine to add it here instead of a few lines later.
+
+The old code also wasn't POSIX compliant as it used \n in the
+replacement section of the s-command. Using \<newline> is the
+POSIX compatible method.
+
+LC_ALL=C was added to the two critical sed commands. POSIX sed
+manual recommends it when using sed to manipulate pathnames
+because in other locales invalid multibyte sequences might
+cause issues with some sed implementations. In case of GNU sed,
+these particular sed scripts wouldn't have such problems but some
+other scripts could have, see:
+
+    info '(sed)Locale Considerations'
+
+This vulnerability was discovered by:
+cleemy desu wayo working with Trend Micro Zero Day Initiative
+
+Thanks to Jim Meyering and Paul Eggert discussing the different
+ways to fix this and for coordinating the patch release schedule
+with gzip.
+---
+ src/scripts/xzgrep.in | 20 ++++++++++++--------
+ 1 file changed, 12 insertions(+), 8 deletions(-)
+
+diff --git a/src/scripts/xzgrep.in b/src/scripts/xzgrep.in
+index b180936..e5186ba 100644
+--- a/src/scripts/xzgrep.in
++++ b/src/scripts/xzgrep.in
+@@ -180,22 +180,26 @@ for i; do
+          { test $# -eq 1 || test $no_filename -eq 1; }; then
+       eval "$grep"
+     else
++      # Append a colon so that the last character will never be a newline
++      # which would otherwise get lost in shell command substitution.
++      i="$i:"
++
++      # Escape & \ | and newlines only if such characters are present
++      # (speed optimization).
+       case $i in
+       (*'
+ '* | *'&'* | *'\'* | *'|'*)
+-        i=$(printf '%s\n' "$i" |
+-            sed '
+-              $!N
+-              $s/[&\|]/\\&/g
+-              $s/\n/\\n/g
+-            ');;
++        i=$(printf '%s\n' "$i" | LC_ALL=C sed 's/[&\|]/\\&/g; $!s/$/\\/');;
+       esac
+-      sed_script="s|^|$i:|"
++
++      # $i already ends with a colon so don't add it here.
++      sed_script="s|^|$i|"
+ 
+       # Fail if grep or sed fails.
+       r=$(
+         exec 4>&1
+-        (eval "$grep" 4>&-; echo $? >&4) 3>&- | sed "$sed_script" >&3 4>&-
++        (eval "$grep" 4>&-; echo $? >&4) 3>&- |
++            LC_ALL=C sed "$sed_script" >&3 4>&-
+       ) || r=2
+       exit $r
+     fi >&3 5>&-
+-- 
+2.35.1
+