!15 [sync] PR-14: fix CVE-2024-37535

From: @openeuler-sync-bot 
Reviewed-by: @happyworker, @technology208 
Signed-off-by: @technology208, @happyworker
This commit is contained in:
openeuler-ci-bot 2024-06-26 06:32:35 +00:00 committed by Gitee
commit 06d7813461
No known key found for this signature in database
GPG Key ID: 173E9B9CA92EEF8F
2 changed files with 130 additions and 1 deletions

View File

@ -0,0 +1,125 @@
From b6a976254b95f728ba17b369b387c19b26890141 Mon Sep 17 00:00:00 2001
From: Christian Persch <Christian Persch@chpe>
Date: Tue, 11 Jun 2024 02:59:02 +0000
Subject: [PATCH] fix CVE-2024-37535
---
src/vtegtk.cc | 35 +++++++++++++++++++++++++++++++++++
src/vteseq.cc | 20 ++++++++++++--------
2 files changed, 47 insertions(+), 8 deletions(-)
diff --git a/src/vtegtk.cc b/src/vtegtk.cc
index 0457b2b..2f7c77b 100644
--- a/src/vtegtk.cc
+++ b/src/vtegtk.cc
@@ -91,6 +91,38 @@
template<typename T>
constexpr bool check_enum_value(T value) noexcept;
+static inline void
+sanitise_widget_size_request(int* minimum,
+ int* natural) noexcept
+{
+ // Overly large size requests will make gtk happily allocate
+ // a window size over the window system's limits (see
+ // e.g. https://gitlab.gnome.org/GNOME/vte/-/issues/2786),
+ // leading to aborting the whole process.
+ // The toolkit should be in a better position to know about
+ // these limits and not exceed them (which here is certainly
+ // possible since our minimum sizes are very small), let's
+ // limit the widget's size request to some large value
+ // that hopefully is within the absolute limits of
+ // the window system (assumed here to be int16 range,
+ // and leaving some space for the widgets that contain
+ // the terminal).
+ auto const limit = (1 << 15) - (1 << 12);
+
+ if (*minimum > limit || *natural > limit) {
+ static auto warned = false;
+
+ if (!warned) {
+ g_warning("Widget size request (minimum %d, natural %d) exceeds limits\n",
+ *minimum, *natural);
+ warned = true;
+ }
+ }
+
+ *minimum = std::min(*minimum, limit);
+ *natural = std::clamp(*natural, *minimum, limit);
+}
+
struct _VteTerminalClassPrivate {
GtkStyleProvider *style_provider;
};
@@ -485,6 +517,7 @@ try
{
VteTerminal *terminal = VTE_TERMINAL(widget);
WIDGET(terminal)->get_preferred_width(minimum_width, natural_width);
+ sanitise_widget_size_request(minimum_width, natural_width);
}
catch (...)
{
@@ -499,6 +532,7 @@ try
{
VteTerminal *terminal = VTE_TERMINAL(widget);
WIDGET(terminal)->get_preferred_height(minimum_height, natural_height);
+ sanitise_widget_size_request(minimum_height, natural_height);
}
catch (...)
{
@@ -736,6 +770,7 @@ try
WIDGET(terminal)->measure(orientation, for_size,
minimum, natural,
minimum_baseline, natural_baseline);
+ sanitise_widget_size_request(minimum, natural);
}
catch (...)
{
diff --git a/src/vteseq.cc b/src/vteseq.cc
index 8a7f5b3..7c0e227 100644
--- a/src/vteseq.cc
+++ b/src/vteseq.cc
@@ -214,9 +214,18 @@ Terminal::emit_bell()
/* Emit a "resize-window" signal. (Grid size.) */
void
Terminal::emit_resize_window(guint columns,
- guint rows)
-{
- _vte_debug_print(VTE_DEBUG_SIGNALS, "Emitting `resize-window'.\n");
+ guint rows)
+{
+ // Ignore resizes with excessive number of rows or columns,
+ // see https://gitlab.gnome.org/GNOME/vte/-/issues/2786
+ if (columns < VTE_MIN_GRID_WIDTH ||
+ columns > 511 ||
+ rows < VTE_MIN_GRID_HEIGHT ||
+ rows > 511)
+ return;
+
+ _vte_debug_print(VTE_DEBUG_SIGNALS, "Emitting `resize-window' %d columns %d rows.\n",
+ columns, rows);
g_signal_emit(m_terminal, signals[SIGNAL_RESIZE_WINDOW], 0, columns, rows);
}
@@ -4581,8 +4590,6 @@ Terminal::DECSLPP(vte::parser::Sequence const& seq)
else if (param < 24)
return;
- _vte_debug_print(VTE_DEBUG_EMULATION, "Resizing to %d rows.\n", param);
-
emit_resize_window(m_column_count, param);
}
@@ -9044,9 +9051,6 @@ Terminal::XTERM_WM(vte::parser::Sequence const& seq)
seq.collect(1, {&height, &width});
if (width != -1 && height != -1) {
- _vte_debug_print(VTE_DEBUG_EMULATION,
- "Resizing window to %d columns, %d rows.\n",
- width, height);
emit_resize_window(width, height);
}
break;
--
2.43.0

View File

@ -12,12 +12,13 @@
Name: vte291
Version: 0.72.2
Release: 1
Release: 2
Summary: Virtual terminal widget
License: GPL-3.0-or-later AND LGPL-3.0-or-later and MIT-open-group AND CC-BY-4.0
URL: https://wiki.gnome.org/Apps/Terminal/VTE
Source0: https://download.gnome.org/sources/vte/0.72/vte-%{version}.tar.xz
Patch0: vte291-cntnr-precmd-preexec-scroll.patch
Patch1: 0001-fix-CVE-2024-37535.patch
BuildRequires: gcc-c++ gettext gi-docgen gobject-introspection-devel gperf meson systemd vala
BuildRequires: pkgconfig(fribidi) >= %{fribidi_version}
@ -113,6 +114,9 @@ sed -i -e "/^vte_systemduserunitdir =/s|vte_prefix|'/usr'|" meson.build
%doc %{_datadir}/doc/vte-2.91-gtk4/
%changelog
* Tue Jun 11 2024 kywqs <weiqingsong@kylinos.cn> - 0.72.2-2
- fix CVE-2024-37535
* Mon Nov 20 2023 lwg <liweiganga@uniontech.com> - 0.72.2-1
- update to version 0.72.2