diff --git a/SOURCES/0001-patch-8.2.3949-using-freed-memory-with-V.patch b/SOURCES/0001-patch-8.2.3949-using-freed-memory-with-V.patch
new file mode 100644
index 0000000..c3f7bb1
--- /dev/null
+++ b/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
diff --git a/SOURCES/0001-patch-8.2.3950-going-beyond-the-end-of-the-line-with.patch b/SOURCES/0001-patch-8.2.3950-going-beyond-the-end-of-the-line-with.patch
new file mode 100644
index 0000000..485f00d
--- /dev/null
+++ b/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
diff --git a/SPECS/vim.spec b/SPECS/vim.spec
index 03efc9b..0c0402a 100644
--- a/SPECS/vim.spec
+++ b/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]