package/libfreeglut: add upstream security fix for CVE-2024-2425{8, 9}

Fixes the following security issues:

- CVE-2024-24258: freeglut 3.4.0 was discovered to contain a memory leak
via the menuEntry variable in the glutAddSubMenu function.
- CVE-2024-24259: freeglut through 3.4.0 was discovered to contain a
memory leak via the menuEntry variable in the glutAddMenuEntry
function.

https://nvd.nist.gov/vuln/detail/CVE-2024-24258
https://nvd.nist.gov/vuln/detail/CVE-2024-24259

The CVEs are not technically reported for the libfreeglut package
itself (which doesn't have a CPE identifier) but for mupdf.

Note that mudpf provides its own (old) version of freeglut, but our
mupdf package uses the Buildroot-provided freeglut (which now contains
the fix).

It also has to be noted that a more recent release of libfreeglut
exists upstream, and it fixes the same CVEs.  Bumping our package
version however requires more work that can be done separately.
Including this patch first also has the advantage that it can easily
be backported wherever it's needed.

Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>
(cherry picked from commit 0f4fef076f99fcfc7187223a6bc154d0a751e963)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

package/libfreeglut/0001-Plug-memory-leak-that-happens-upon-error.patch

@@ -0,0 +1,54 @@
+From 9ad320c1ad1a25558998ddfe47674511567fec57 Mon Sep 17 00:00:00 2001
+From: Sebastian Rasmussen <sebras@gmail.com>
+Date: Mon, 12 Feb 2024 14:46:22 +0800
+Subject: [PATCH] Plug memory leak that happens upon error.
+
+If fgStructure.CurrentMenu is set when glutAddMenuEntry() or
+glutAddSubMenu() is called the allocated menuEntry variable will
+leak. This commit postpones allocating menuEntry until after the
+error checks, thereby plugging the memory leak.
+
+This fixes CVE-2024-24258 and CVE-2024-24259.
+Upstream: https://github.com/freeglut/freeglut/commit/9ad320c1ad1a25558998ddfe47674511567fec57
+Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
+---
+ src/fg_menu.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/fg_menu.c b/src/fg_menu.c
+index 53112dc2..0da88901 100644
+--- a/src/fg_menu.c
++++ b/src/fg_menu.c
+@@ -864,12 +864,12 @@ void FGAPIENTRY glutAddMenuEntry( const char* label, int value )
+ {
+     SFG_MenuEntry* menuEntry;
+     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutAddMenuEntry" );
+-    menuEntry = (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 );
+ 
+     freeglut_return_if_fail( fgStructure.CurrentMenu );
+     if (fgState.ActiveMenus)
+         fgError("Menu manipulation not allowed while menus in use.");
+ 
++    menuEntry = (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 );
+     menuEntry->Text = strdup( label );
+     menuEntry->ID   = value;
+ 
+@@ -888,7 +888,6 @@ void FGAPIENTRY glutAddSubMenu( const char *label, int subMenuID )
+     SFG_Menu *subMenu;
+ 
+     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutAddSubMenu" );
+-    menuEntry = ( SFG_MenuEntry * )calloc( sizeof( SFG_MenuEntry ), 1 );
+     subMenu = fgMenuByID( subMenuID );
+ 
+     freeglut_return_if_fail( fgStructure.CurrentMenu );
+@@ -897,6 +896,7 @@ void FGAPIENTRY glutAddSubMenu( const char *label, int subMenuID )
+ 
+     freeglut_return_if_fail( subMenu );
+ 
++    menuEntry = ( SFG_MenuEntry * )calloc( sizeof( SFG_MenuEntry ), 1 );
+     menuEntry->Text    = strdup( label );
+     menuEntry->SubMenu = subMenu;
+     menuEntry->ID      = -1;
+-- 
+2.48.1
+

package/mupdf/mupdf.mk

@@ -21,6 +21,12 @@ MUPDF_DEPENDENCIES = \
 	lcms2 openjpeg \
 	zlib
 
+# libfreeglut/0001-Plug-memory-leak-that-happens-upon-error.patch
+# Fix is in libfreeglut, but CVE applied to mupdf.
+MUPDF_IGNORE_CVES = \
+	CVE-2024-24258 \
+	CVE-2024-24259
+
 # mupdf doesn't use CFLAGS and LIBS but XCFLAGS and XLIBS instead.
 # with USE_SYSTEM_LIBS it will try to use system libraries instead of the bundled ones.
 MUPDF_MAKE_ENV = $(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) \