indent: fix CVE-2023-40305stable/kirkstone-nut

GNU indent 2.2.13 has a heap-based buffer overflow in search_brace in indent.c via a crafted file. Reference: https://savannah.gnu.org/bugs/index.php?64503 Signed-off-by: Yogita Urade <yogita.urade@windriver.com> Signed-off-by: Armin Kuster <akuster808@gmail.com>
author: Yogita Urade <yogita.urade@windriver.com> 2023-10-20 04:56:09 +0000
committer: Armin Kuster <akuster808@gmail.com> 2023-11-03 10:52:59 -0400
commit: 7da6cb848bc42b3e6bd5d2b37b52ba75510a6ca0 (patch)
tree: ef59f822029d7e5408f136c17558360631de4cd9
parent: b4bee1f709f28bc70eab9666ce3010be0ee06f95 (diff)
download: meta-openembedded-stable/kirkstone-nut.tar.gz
3 files changed, 8452 insertions, 0 deletions
diff --git a/meta-oe/recipes-extended/indent/indent/CVE-2023-40305_0001.patch b/meta-oe/recipes-extended/indent/indent/CVE-2023-40305_0001.patch
new file mode 100644
index 000000000..367202e3c
--- /dev/null
+++ b/meta-oe/recipes-extended/indent/indent/CVE-2023-40305_0001.patch
@@ -0,0 +1,4196 @@
+From df4ab2d19e247d059e0025789ba513418073ab6f Mon Sep 17 00:00:00 2001
+From: Petr Písař <ppisar@redhat.com>
+Date: Thu, 19 Oct 2023 07:36:32 +0000
+Subject: [PATCH] Fix an out-of-buffer read in search_brace()/lexi() on an
+ condition without parentheses followed with an overlong comment
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+Reproducer:
+$ hexdump -C /tmp/short
+00000000  69 66 20 30 3b 65 6c 73  65 2f 2a 0a 0a 0a 0a 0a  |if 0;else/*.....|
+00000010  0a 0a 0a 0a 0a 0a 0a 0a  0a 0a 0a 0a 0a 0a 0a 0a  |................|
+*
+00000800  0a 0a 2a 2f 78 0a                                 |..*/x.|
+00000806
+$ valgrind -- ./indent -o /dev/null /tmp/short
+[...]
+==21830== Invalid read of size 1
+==21830==    at 0x40586A: lexi (lexi.c:251)
+==21830==    by 0x40198C: search_brace (indent.c:387)
+==21830==    by 0x401CC2: indent_main_loop (indent.c:548)
+==21830==    by 0x402298: indent (indent.c:758)
+==21830==    by 0x402941: indent_single_file (indent.c:1003)
+==21830==    by 0x402A0F: indent_all (indent.c:1041)
+==21830==    by 0x402BC5: main (indent.c:1122)
+==21830==  Address 0x4ab2210 is 0 bytes inside a block of size 2,048 free'd
+==21830==    at 0x4847A40: realloc (vg_replace_malloc.c:1649)
+==21830==    by 0x408BC0: xrealloc (globs.c:64)
+==21830==    by 0x40BF03: need_chars (handletoken.c:89)
+==21830==    by 0x401433: sw_buffer (indent.c:149)
+==21830==    by 0x401973: search_brace (indent.c:380)
+==21830==    by 0x401CC2: indent_main_loop (indent.c:548)
+==21830==    by 0x402298: indent (indent.c:758)
+==21830==    by 0x402941: indent_single_file (indent.c:1003)
+==21830==    by 0x402A0F: indent_all (indent.c:1041)
+==21830==    by 0x402BC5: main (indent.c:1122)
+==21830==  Block was alloc'd at
+==21830==    at 0x4847A40: realloc (vg_replace_malloc.c:1649)
+==21830==    by 0x408BC0: xrealloc (globs.c:64)
+==21830==    by 0x40BF03: need_chars (handletoken.c:89)
+==21830==    by 0x401696: search_brace (indent.c:281)
+==21830==    by 0x401CC2: indent_main_loop (indent.c:548)
+==21830==    by 0x402298: indent (indent.c:758)
+==21830==    by 0x402941: indent_single_file (indent.c:1003)
+==21830==    by 0x402A0F: indent_all (indent.c:1041)
+==21830==    by 0x402BC5: main (indent.c:1122)
+The cause was that need_chars(&save_com, ...) could reallocate save_com.ptr
+pointer keeping a dangling copy of that pointer saved to buf_ptr
+a line above.
+Related to CVE-2023-40305
+Signed-off-by: Petr Písař <ppisar@redhat.com>
+CVE: CVE-2023-40305
+Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/indent.git/commit/?id=df4ab2d19e247d059e0025789ba513418073ab6f]
+Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
+---
+ regression/TEST                             |    3 +-
+ regression/input/comment-heap-overread.c    | 2040 ++++++++++++++++++
+ regression/standard/comment-heap-overread.c | 2042 +++++++++++++++++++
+ src/indent.c                                |    2 +-
+ 4 files changed, 4085 insertions(+), 2 deletions(-)
+ create mode 100644 regression/input/comment-heap-overread.c
+ create mode 100644 regression/standard/comment-heap-overread.c
+diff --git a/regression/TEST b/regression/TEST
+index 56f41d9..a7a6747 100755
+--- a/regression/TEST
+++ b/regression/TEST
+@@ -37,7 +37,8 @@ BUGS="case-label.c one-line-1.c one-line-2.c one-line-3.c \
+         one-line-4.c struct-decl.c sizeof-in-while.c line-break-comment.c \
+         macro.c enum.c elif.c nested.c wrapped-string.c minus_predecrement.c \
+         bug-gnu-33364.c float-constant-suffix.c block-comments.c \
+-        no-forced-nl-in-block-init.c hexadecimal_float.c"
+        no-forced-nl-in-block-init.c hexadecimal_float.c \
+        comment-heap-overread.c"
+ INDENTSRC="args.c backup.h backup.c dirent_def.h globs.c indent.h \
+         indent.c indent_globs.h io.c lexi.c memcpy.c parse.c pr_comment.c \
+diff --git a/regression/input/comment-heap-overread.c b/regression/input/comment-heap-overread.c
+new file mode 100644
+index 0000000..5b0b172
+--- /dev/null
+++ b/regression/input/comment-heap-overread.c
+@@ -0,0 +1,2040 @@
+if 0;else/*
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+*/x
+diff --git a/regression/standard/comment-heap-overread.c b/regression/standard/comment-heap-overread.c
+new file mode 100644
+index 0000000..e601fb4
+--- /dev/null
+++ b/regression/standard/comment-heap-overread.c
+@@ -0,0 +1,2042 @@
+if 0;
+else                           /*
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+                                */
+  x
+diff --git a/src/indent.c b/src/indent.c
+index 0c2780b..208b48a 100644
+--- a/src/indent.c
+++ b/src/indent.c
+@@ -145,8 +145,8 @@ static void sw_buffer(void)
+     parser_state_tos->search_brace = false;
+     bp_save = buf_ptr;
+     be_save = buf_end;
+-    buf_ptr = save_com.ptr;
+     need_chars (&save_com, 1);
+    buf_ptr = save_com.ptr;
+     buf_end = save_com.end;
+     save_com.end = save_com.ptr;        /* make save_com empty */
+ }
+--
+2.35.5
diff --git a/meta-oe/recipes-extended/indent/indent/CVE-2023-40305_0002.patch b/meta-oe/recipes-extended/indent/indent/CVE-2023-40305_0002.patch
new file mode 100644
index 000000000..d02521bb0
--- /dev/null
+++ b/meta-oe/recipes-extended/indent/indent/CVE-2023-40305_0002.patch
@@ -0,0 +1,4254 @@
+From 2685cc0bef0200733b634932ea7399b6cf91b6d7 Mon Sep 17 00:00:00 2001
+From: Petr Písař <ppisar@redhat.com>
+Date: Thu, 19 Oct 2023 08:42:59 +0000
+Subject: [PATCH] Fix a heap buffer overwrite in search_brace()
+ (CVE-2023-40305)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+If there was a comment between if-condition and an statement opening
+bracket and the comment size aligned to an indent-internal 1024 B
+buffer for comments, indent attempted to write into a nonallocated
+memory on heap.
+$ hexdump -C /tmp/write1
+00000000  69 66 20 30 3b 65 6c 73  65 2f 2a 0a 0a 0a 0a 0a  |if 0;else/*.....|
+00000010  0a 0a 0a 0a 0a 0a 0a 0a  0a 0a 0a 0a 0a 0a 0a 0a  |................|
+*
+00000800  0a 0a 0a 0a 2a 2f 7b 0a                           |....*/{.|
+00000808
+$ valgrind -- ./indent -o /dev/null /tmp/write1 2>&1 | head -n 23
+==26345== Memcheck, a memory error detector
+==26345== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
+==26345== Using Valgrind-3.21.0 and LibVEX; rerun with -h for copyright info
+==26345== Command: ./indent -o /dev/null /tmp/write1
+==26345==
+==26345== Invalid write of size 1
+==26345==    at 0x401558: search_brace (indent.c:232)
+==26345==    by 0x401CB2: indent_main_loop (indent.c:548)
+==26345==    by 0x402288: indent (indent.c:758)
+==26345==    by 0x402931: indent_single_file (indent.c:1003)
+==26345==    by 0x4029FF: indent_all (indent.c:1041)
+==26345==    by 0x402BA6: main (indent.c:1122)
+==26345==  Address 0x4aa7830 is 0 bytes after a block of size 2,048 alloc'd
+==26345==    at 0x4847A40: realloc (vg_replace_malloc.c:1649)
+==26345==    by 0x408BA1: xrealloc (globs.c:64)
+==26345==    by 0x40BEE4: need_chars (handletoken.c:89)
+==26345==    by 0x401686: search_brace (indent.c:281)
+==26345==    by 0x401CB2: indent_main_loop (indent.c:548)
+==26345==    by 0x402288: indent (indent.c:758)
+==26345==    by 0x402931: indent_single_file (indent.c:1003)
+==26345==    by 0x4029FF: indent_all (indent.c:1041)
+==26345==    by 0x402BA6: main (indent.c:1122)
+The cause was that the buffer was exhausted by the comment text and no
+space left for the following new-line and curly bracket characters.
+This patch fixes it by enlarging the buffer two fit these two
+additional characters.
+<https://savannah.gnu.org/bugs/index.php?64503>
+Signed-off-by: Petr Písař <ppisar@redhat.com>
+CVE: CVE-2023-40305
+Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/indent.git/commit/?id=2685cc0bef0200733b634932ea7399b6cf91b6d7]
+Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
+---
+ regression/TEST                               |   44 +-
+ regression/input/comment-heap-overwrite.c     | 2042 ++++++++++++++++
+ regression/standard/comment-heap-overwrite.c  | 2044 +++++++++++++++++
+ .../standard/comment-heap-overwrite.err       |    1 +
+ src/indent.c                                  |    1 +
+ 5 files changed, 4111 insertions(+), 21 deletions(-)
+ create mode 100644 regression/input/comment-heap-overwrite.c
+ create mode 100644 regression/standard/comment-heap-overwrite.c
+ create mode 100644 regression/standard/comment-heap-overwrite.err
+diff --git a/regression/TEST b/regression/TEST
+index a7a6747..a76c112 100755
+--- a/regression/TEST
+++ b/regression/TEST
+@@ -427,6 +427,7 @@ echo Testing new comment stuff...Done.
+ echo Testing bad code handling....
+ERR=output/errors
+ # print_comment() was reading past the end of the buffer...
+ echo -ne '/*' | $INDENT -npro -st > /dev/null 2>&1
+@@ -444,29 +445,30 @@ then
+     echo >> $ERR
+ fi
+-# This ends in a error from indent but it shouldn't coredump.
+-$INDENT -npro input/bug206785.c -o output/bug206785.c 2>output/bug206785.err
+# This ends in an error from indent but it shouldn't coredump.
+for TEST in bug206785 comment-heap-overwrite; do
+    $INDENT -npro input/"$TEST".c -o output/"$TEST".c 2>output/"$TEST".err
+-if [ $? -ne 2 ]
+-then
+-    printf ERROR: bad return status from indent. | tee -a $ERR
+-    echo >> $ERR
+-fi
+-cd output
+    if [ $? -ne 2 ]
+    then
+        printf "ERROR: bad return status from indent for %s.c" "$TEST" | tee -a $ERR
+        echo >> $ERR
+    fi
+-for i in bug206785.c bug206785.err
+-do
+-  printf ...$i...
+-  diff --initial-tab ../standard/$i $i > $i-diffs 2>&1
+-  if [ -s $i-diffs ]
+-  then
+-    printf ERROR: $i failed | tee -a $ERR
+-    echo >> $ERR
+-  else
+-    rm $i-diffs
+-    rm $i
+-  fi
+-  echo
+    for i in "$TEST".c "$TEST".err
+    do
+      printf "...%s..." "$i"
+      diff --initial-tab standard/"$i" output/"$i" > output/"$i"-diffs 2>&1
+      if [ -s output/"$i"-diffs ]
+      then
+        printf "ERROR: %s failed" "$i" | tee -a $ERR
+        echo >> $ERR
+      else
+        rm output/"$i"-diffs
+        rm output/"$i"
+      fi
+      echo
+    done
+ done
+ echo Testing bad code handling...Done.
+diff --git a/regression/input/comment-heap-overwrite.c b/regression/input/comment-heap-overwrite.c
+new file mode 100644
+index 0000000..5b1ca6a
+--- /dev/null
+++ b/regression/input/comment-heap-overwrite.c
+@@ -0,0 +1,2042 @@
+if 0;else/*
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+*/{
+diff --git a/regression/standard/comment-heap-overwrite.c b/regression/standard/comment-heap-overwrite.c
+new file mode 100644
+index 0000000..8650d51
+--- /dev/null
+++ b/regression/standard/comment-heap-overwrite.c
+@@ -0,0 +1,2044 @@
+if 0;
+else                           /*
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+                                */
+  {
+diff --git a/regression/standard/comment-heap-overwrite.err b/regression/standard/comment-heap-overwrite.err
+new file mode 100644
+index 0000000..fa571c8
+--- /dev/null
+++ b/regression/standard/comment-heap-overwrite.err
+@@ -0,0 +1 @@
+indent: input/comment-heap-overwrite.c:2044: Error:Unexpected end of file
+diff --git a/src/indent.c b/src/indent.c
+index 208b48a..a9f88a2 100644
+--- a/src/indent.c
+++ b/src/indent.c
+@@ -228,6 +228,7 @@ static BOOLEAN search_brace(
+                  * a `dump_line' call, thus ensuring that the brace
+                  * will go into the right column. */
+               need_chars (&save_com, 2);
+                 *save_com.end++ = EOL;
+                 *save_com.end++ = '{';
+                 save_com.len += 2;
+--
+2.35.5
diff --git a/meta-oe/recipes-extended/indent/indent_2.2.12.bb b/meta-oe/recipes-extended/indent/indent_2.2.12.bb
index 1a7d61abc..a846682c1 100644
--- a/meta-oe/recipes-extended/indent/indent_2.2.12.bb
+++ b/meta-oe/recipes-extended/indent/indent_2.2.12.bb
@@ -17,6 +17,8 @@ SRC_URI = "${GNU_MIRROR}/${BPN}/${BP}.tar.gz \
           file://0001-Makefile.am-remove-regression-dir.patch \
           file://0001-Fix-builds-with-recent-gettext.patch \
           file://0001-Remove-dead-paren_level-code.patch \
+           file://CVE-2023-40305_0001.patch \
+           file://CVE-2023-40305_0002.patch \
           "
 SRC_URI[md5sum] = "4764b6ac98f6654a35da117b8e5e8e14"
 SRC_URI[sha256sum] = "e77d68c0211515459b8812118d606812e300097cfac0b4e9fb3472664263bb8b"
author	Yogita Urade <yogita.urade@windriver.com>	2023-10-20 04:56:09 +0000
committer	Armin Kuster <akuster808@gmail.com>	2023-11-03 10:52:59 -0400
commit	7da6cb848bc42b3e6bd5d2b37b52ba75510a6ca0 (patch)
tree	ef59f822029d7e5408f136c17558360631de4cd9
parent	b4bee1f709f28bc70eab9666ce3010be0ee06f95 (diff)
download	meta-openembedded-stable/kirkstone-nut.tar.gz