import vim-8.0.1763-16.el8_5.4

SOURCES/0001-patch-8.2.3949-using-freed-memory-with-V.patch

@@ -0,0 +1,45 @@
+diff -up vim80/src/regexp.c.cve4192 vim80/src/regexp.c
+--- vim80/src/regexp.c.cve4192	2022-01-12 15:21:44.792239040 +0100
++++ vim80/src/regexp.c	2022-01-12 15:34:35.190425880 +0100
+@@ -4203,9 +4203,9 @@ reg_match_visual(void)
+     if (lnum < top.lnum || lnum > bot.lnum)
+ 	return FALSE;
+ 
++    col = (colnr_T)(reginput - regline);
+     if (mode == 'v')
+     {
+-	col = (colnr_T)(reginput - regline);
+ 	if ((lnum == top.lnum && col < top.col)
+ 		|| (lnum == bot.lnum && col >= bot.col + (*p_sel != 'e')))
+ 	    return FALSE;
+@@ -4220,7 +4220,12 @@ reg_match_visual(void)
+ 	    end = end2;
+ 	if (top.col == MAXCOL || bot.col == MAXCOL)
+ 	    end = MAXCOL;
+-	cols = win_linetabsize(wp, regline, (colnr_T)(reginput - regline));
++
++	// getvvcol() flushes rex.line, need to get it again
++	regline = reg_getline(reglnum);
++	reginput = regline + col;
++
++	cols = win_linetabsize(wp, regline, col);
+ 	if (cols < start || cols > end - (*p_sel == 'e'))
+ 	    return FALSE;
+     }
+diff -up vim80/src/testdir/test_regexp_latin.vim.cve4192 vim80/src/testdir/test_regexp_latin.vim
+--- vim80/src/testdir/test_regexp_latin.vim.cve4192	2022-01-12 15:21:44.792239040 +0100
++++ vim80/src/testdir/test_regexp_latin.vim	2022-01-12 15:36:12.499693099 +0100
+@@ -80,3 +80,13 @@ func Test_using_invalid_visual_position(
+   /\%V
+   bwipe!
+ endfunc
++
++func Test_using_visual_position()
++  " this was using freed memory
++  new
++  exe "norm 0o\<Esc>\<C-V>k\<C-X>o0"
++  /\%V
++  bwipe!
++endfunc
++
++" vim: shiftwidth=2 sts=2 expandtab

SOURCES/0001-patch-8.2.3950-going-beyond-the-end-of-the-line-with.patch

@@ -0,0 +1,38 @@
+diff -up vim80/src/charset.c.cve4193 vim80/src/charset.c
+--- vim80/src/charset.c.cve4193	2022-01-12 14:49:08.710592947 +0100
++++ vim80/src/charset.c	2022-01-12 14:49:47.594705863 +0100
+@@ -1291,10 +1291,15 @@ getvcol(
+ 	posptr = NULL;  /* continue until the NUL */
+     else
+     {
+-	/* Special check for an empty line, which can happen on exit, when
+-	 * ml_get_buf() always returns an empty string. */
+-	if (*ptr == NUL)
+-	    pos->col = 0;
++	colnr_T i;
++
++	// In a few cases the position can be beyond the end of the line.
++	for (i = 0; i < pos->col; ++i)
++	    if (ptr[i] == NUL)
++	    {
++		pos->col = i;
++		break;
++	    }
+ 	posptr = ptr + pos->col;
+ #ifdef FEAT_MBYTE
+ 	if (has_mbyte)
+diff -up vim80/src/testdir/test_regexp_latin.vim.cve4193 vim80/src/testdir/test_regexp_latin.vim
+--- vim80/src/testdir/test_regexp_latin.vim.cve4193	2022-01-12 14:49:08.710592947 +0100
++++ vim80/src/testdir/test_regexp_latin.vim	2022-01-12 14:50:45.186873107 +0100
+@@ -72,3 +72,11 @@ func Test_backref()
+   call assert_fails('call search("\\%#=2\\(e\\1\\)")', 'E65:')
+   bwipe!
+ endfunc
++
++func Test_using_invalid_visual_position()
++  " this was going beyond the end of the line
++  new
++  exe "norm 0o000\<Esc>0\<C-V>$s0"
++  /\%V
++  bwipe!
++endfunc

SPECS/vim.spec

@@ -24,7 +24,7 @@ Summary: The VIM editor
 URL:     http://www.vim.org/
 Name: vim
 Version: %{baseversion}.%{patchlevel}
-Release: 16%{?dist}.3
+Release: 16%{?dist}.4
 License: Vim and MIT
 Source0: ftp://ftp.vim.org/pub/vim/unix/vim-%{baseversion}-%{patchlevel}.tar.bz2
 Source1: vim.sh
@@ -84,6 +84,10 @@ Patch3024: 0001-patch-8.2.3487-illegal-memory-access-if-buffer-name-.patch
 Patch3025: 0001-patch-8.2.3625-illegal-memory-access-when-C-indentin.patch
 # 2028430 - CVE-2021-4019 vim: heap-based buffer overflow in find_help_tags() in src/help.c [rhel-8.6.0]
 Patch3026: 0001-patch-8.2.3669-buffer-overflow-with-long-help-argume.patch
+# CVE-2021-4193 vim: vulnerable to Out-of-bounds Read
+Patch3027: 0001-patch-8.2.3950-going-beyond-the-end-of-the-line-with.patch
+# CVE-2021-4192 vim: vulnerable to Use After Free
+Patch3028: 0001-patch-8.2.3949-using-freed-memory-with-V.patch
 
 # gcc is no longer in buildroot by default
 BuildRequires: gcc
@@ -287,6 +291,8 @@ perl -pi -e "s,bin/nawk,bin/awk,g" runtime/tools/mve.awk
 %patch3024 -p1 -b .cve3872
 %patch3025 -p1 -b .cve3984
 %patch3026 -p1 -b .cve4019
+%patch3027 -p1 -b .cve4193
+%patch3028 -p1 -b .cve4192
 
 %build
 %if 0%{?rhel} > 7
@@ -805,6 +811,10 @@ touch %{buildroot}/%{_datadir}/%{name}/vimfiles/doc/tags
 %{_datadir}/icons/locolor/*/apps/*
 
 %changelog
+* Wed Jan 12 2022 Zdenek Dohnal <zdohnal@redhat.com> - 2:8.0.1763-16.4
+- CVE-2021-4193 vim: vulnerable to Out-of-bounds Read
+- CVE-2021-4192 vim: vulnerable to Use After Free
+
 * Fri Dec 03 2021 Zdenek Dohnal <zdohnal@redhat.com> - 2:8.0.1763-16.3
 - 2028341 - CVE-2021-3984 vim: illegal memory access when C-indenting could lead to Heap Buffer Overflow [rhel-8.6.0]
 - 2028430 - CVE-2021-4019 vim: heap-based buffer overflow in find_help_tags() in src/help.c [rhel-8.6.0]