From 9265a3bba1a4b29410764be3d9d1939f36b1e065 Mon Sep 17 00:00:00 2001
From: liningjie <liningjie@xfusion.com>
Date: Fri, 1 Nov 2024 17:45:21 +0800
Subject: [PATCH] Fix CVE-2024-46951

---
 backport-CVE-2024-46951.patch | 31 +++++++++++++++++++++++++++++++
 ghostscript.spec              |  9 ++++++++-
 2 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 backport-CVE-2024-46951.patch

diff --git a/backport-CVE-2024-46951.patch b/backport-CVE-2024-46951.patch
new file mode 100644
index 0000000..93fb232
--- /dev/null
+++ b/backport-CVE-2024-46951.patch
@@ -0,0 +1,31 @@
+From ada21374f0c90cc3acf7ce0e96302394560c7aee Mon Sep 17 00:00:00 2001
+From: Zdenek Hutyra <zhutyra@centrum.cz>
+Date: Fri, 30 Aug 2024 13:16:39 +0100
+Subject: [PATCH] PS interpreter - check the type of the Pattern Implementation
+
+Bug #707991
+
+See bug report for details.
+
+CVE-2024-46951
+---
+ psi/zcolor.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/psi/zcolor.c b/psi/zcolor.c
+index d4e7a4438..d3384d75d 100644
+--- a/psi/zcolor.c
++++ b/psi/zcolor.c
+@@ -5276,6 +5276,9 @@ static int patterncomponent(i_ctx_t * i_ctx_p, ref *space, int *n)
+             code = array_get(imemory, pImpl, 0, &pPatInst);
+             if (code < 0)
+                 return code;
++
++            if (!r_is_struct(&pPatInst) || (!r_has_stype(&pPatInst, imemory, st_pattern1_instance) && !r_has_stype(&pPatInst, imemory, st_pattern2_instance)))
++                return_error(gs_error_typecheck);
+             cc.pattern = r_ptr(&pPatInst, gs_pattern_instance_t);
+             if (pattern_instance_uses_base_space(cc.pattern))
+                 *n = n_comps;
+-- 
+2.34.1
+
diff --git a/ghostscript.spec b/ghostscript.spec
index 5317a9b..30fd2cd 100644
--- a/ghostscript.spec
+++ b/ghostscript.spec
@@ -9,7 +9,7 @@
 
 Name:             ghostscript
 Version:          9.52
-Release:          19
+Release:          20
 Summary:          An interpreter for PostScript and PDF files
 License:          AGPLv3+
 URL:              https://ghostscript.com/
@@ -63,6 +63,7 @@ Patch44:  fix-CVE-2024-33871.patch
 Patch45:  backport-CVE-2024-46953.patch
 Patch46:  backport-CVE-2024-46956.patch
 Patch47:  backport-CVE-2024-46955.patch
+Patch48:  backport-CVE-2024-46951.patch
 
 BuildRequires:    automake gcc
 BuildRequires:    adobe-mappings-cmap-devel adobe-mappings-pdf-devel
@@ -223,6 +224,12 @@ install -m 0755 -d %{buildroot}%{_datadir}/%{name}/conf.d/
 %{_bindir}/dvipdf
 
 %changelog
+* Fri Nov 01 2024 liningjie <liningjie@xfusion.com> - 9.52-20
+- Type:CVE
+- ID:NA
+- SUG:NA
+- DECS: Fix CVE-2024-46951
+
 * Wed Oct 30 2024 liningjie <liningjie@xfusion.com> - 9.52-19
 - Type:CVE
 - ID:NA
-- 
Gitee