!219 fix CVE-2022-1733 CVE-2022-1735
From: @tong_1001 Reviewed-by: @xiezhipeng1 Signed-off-by: @xiezhipeng1
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44
backport-CVE-2022-1733.patch
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44
backport-CVE-2022-1733.patch
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@ -0,0 +1,44 @@
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From 60ae0e71490c97f2871a6344aca61cacf220f813 Mon Sep 17 00:00:00 2001
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From: Bram Moolenaar <Bram@vim.org>
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Date: Mon, 16 May 2022 18:06:15 +0100
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Subject: [PATCH] patch 8.2.4968: reading past end of the line when C-indenting
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Problem: Reading past end of the line when C-indenting.
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Solution: Check for NUL.
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---
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src/cindent.c | 2 +-
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src/testdir/test_cindent.vim | 7 +++++++
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2 files changed, 8 insertions(+), 1 deletion(-)
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diff --git a/src/cindent.c b/src/cindent.c
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index 28d1558..1b2763f 100644
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--- a/src/cindent.c
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+++ b/src/cindent.c
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@@ -91,7 +91,7 @@ skip_string(char_u *p)
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while (vim_isdigit(p[i - 1])) // '\000'
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++i;
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}
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- if (p[i] == '\'') // check for trailing '
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+ if (p[i - 1] != NUL && p[i] == '\'') // check for trailing '
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{
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p += i;
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continue;
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diff --git a/src/testdir/test_cindent.vim b/src/testdir/test_cindent.vim
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index 2a87460..3b2200a 100644
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--- a/src/testdir/test_cindent.vim
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+++ b/src/testdir/test_cindent.vim
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@@ -5263,4 +5263,11 @@ func Test_find_brace_backwards()
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endfunc
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+" This was reading past the end of the line
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+func Test_cindent_check_funcdecl()
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+ new
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+ sil norm o0('\0=L
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+ bwipe!
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+endfunc
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+
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" vim: shiftwidth=2 sts=2 expandtab
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--
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1.8.3.1
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122
backport-CVE-2022-1735.patch
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122
backport-CVE-2022-1735.patch
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@ -0,0 +1,122 @@
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From 7ce5b2b590256ce53d6af28c1d203fb3bc1d2d97 Mon Sep 17 00:00:00 2001
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From: Bram Moolenaar <Bram@vim.org>
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Date: Mon, 16 May 2022 19:40:59 +0100
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Subject: [PATCH] patch 8.2.4969: changing text in Visual mode may cause
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invalid memory access
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Problem: Changing text in Visual mode may cause invalid memory access.
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Solution: Check the Visual position after making a change.
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---
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src/change.c | 3 +++
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src/edit.c | 12 ++----------
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src/misc2.c | 25 +++++++++++++++++++++++++
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src/proto/misc2.pro | 1 +
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src/testdir/test_visual.vim | 10 ++++++++++
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5 files changed, 41 insertions(+), 10 deletions(-)
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diff --git a/src/change.c b/src/change.c
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index f2dfc93..a5ebbdf 100644
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--- a/src/change.c
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+++ b/src/change.c
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@@ -523,6 +523,9 @@ changed_common(
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#endif
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}
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+ if (VIsual_active)
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+ check_visual_pos();
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+
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FOR_ALL_TAB_WINDOWS(tp, wp)
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{
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if (wp->w_buffer == curbuf)
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diff --git a/src/edit.c b/src/edit.c
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index f77cc05..0dd6b93 100644
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--- a/src/edit.c
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+++ b/src/edit.c
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@@ -3101,16 +3101,8 @@ stop_insert(
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// <C-S-Right> may have started Visual mode, adjust the position for
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// deleted characters.
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- if (VIsual_active && VIsual.lnum == curwin->w_cursor.lnum)
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- {
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- int len = (int)STRLEN(ml_get_curline());
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-
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- if (VIsual.col > len)
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- {
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- VIsual.col = len;
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- VIsual.coladd = 0;
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- }
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- }
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+ if (VIsual_active)
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+ check_visual_pos();
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}
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}
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did_ai = FALSE;
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diff --git a/src/misc2.c b/src/misc2.c
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index 80731f0..51244da 100644
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--- a/src/misc2.c
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+++ b/src/misc2.c
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@@ -618,6 +618,31 @@ check_cursor(void)
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check_cursor_col();
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}
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+/*
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+ * Check if VIsual position is valid, correct it if not.
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+ * Can be called when in Visual mode and a change has been made.
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+ */
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+ void
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+check_visual_pos(void)
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+{
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+ if (VIsual.lnum > curbuf->b_ml.ml_line_count)
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+ {
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+ VIsual.lnum = curbuf->b_ml.ml_line_count;
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+ VIsual.col = 0;
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+ VIsual.coladd = 0;
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+ }
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+ else
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+ {
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+ int len = (int)STRLEN(ml_get(VIsual.lnum));
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+
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+ if (VIsual.col > len)
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+ {
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+ VIsual.col = len;
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+ VIsual.coladd = 0;
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+ }
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+ }
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+}
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+
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#if defined(FEAT_TEXTOBJ) || defined(PROTO)
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/*
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* Make sure curwin->w_cursor is not on the NUL at the end of the line.
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diff --git a/src/proto/misc2.pro b/src/proto/misc2.pro
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index a52b462..6e6e22d 100644
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--- a/src/proto/misc2.pro
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+++ b/src/proto/misc2.pro
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@@ -17,6 +17,7 @@ void check_cursor_lnum(void);
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void check_cursor_col(void);
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void check_cursor_col_win(win_T *win);
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void check_cursor(void);
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+void check_visual_pos(void);
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void adjust_cursor_col(void);
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int leftcol_changed(void);
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void vim_mem_profile_dump(void);
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diff --git a/src/testdir/test_visual.vim b/src/testdir/test_visual.vim
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index 4f8f056..d21f8f1 100644
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--- a/src/testdir/test_visual.vim
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+++ b/src/testdir/test_visual.vim
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@@ -956,3 +956,13 @@ func Test_visual_block_insert_round_off()
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bwipe!
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endfunc
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+func Test_visual_block_with_substitute()
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+ " this was reading beyond the end of the line
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+ new
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+ norm a0)
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+ sil! norm O
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+ s/)
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+ sil! norm
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+ bwipe!
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+endfunc
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+
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--
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1.8.3.1
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10
vim.spec
10
vim.spec
@ -12,7 +12,7 @@
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Name: vim
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Epoch: 2
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Version: 8.2
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Release: 34
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Release: 35
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Summary: Vim is a highly configurable text editor for efficiently creating and changing any kind of text.
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License: Vim and MIT
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URL: http://www.vim.org
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@ -104,6 +104,8 @@ Patch6067: backport-CVE-2022-1621.patch
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Patch6068: backport-spell-test-fails-because-of-new-illegal-byte-check.patch
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Patch6069: backport-command-line-editing-not-sufficiently-tested.patch
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Patch6070: backport-CVE-2022-1619.patch
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Patch6071: backport-CVE-2022-1733.patch
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Patch6072: backport-CVE-2022-1735.patch
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Patch9000: bugfix-rm-modify-info-version.patch
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@ -492,6 +494,12 @@ popd
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%{_mandir}/man1/evim.*
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%changelog
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* Tue May 31 2022 shixuantong <shixuantong@h-partners.com> - 2:8.2-35
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- Type:CVE
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- ID:CVE-2022-1733 CVE-2022-1735
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- SUG:NA
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- DESC:fix CVE-2022-1733 CVE-2022-1735
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* Sat May 21 2022 shixuantong <shixuantong@h-partners.com> - 2:8.2-34
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- Type:CVE
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- ID:CVE-2022-1629 CVE-2022-1620 CVE-2022-1674 CVE-2022-1621 CVE-2022-1619
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