Fix CVE-2024-46951

backport-CVE-2024-46951.patch

@@ -0,0 +1,30 @@
+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

ghostscript.spec

@@ -9,7 +9,7 @@
 
 Name:             ghostscript
 Version:          9.55.0
-Release:          14
+Release:          15
 Summary:          An interpreter for PostScript and PDF files
 License:          AGPLv3+
 URL:              https://ghostscript.com/
@@ -46,6 +46,7 @@ Patch18:  Bug-707510-fix-LIBIDN-usage.patch
 Patch19:   backport-CVE-2024-46953.patch
 Patch20:   backport-CVE-2024-46956.patch
 Patch21:   backport-CVE-2024-46955.patch
+Patch22:   backport-CVE-2024-46951.patch
 
 BuildRequires:    automake gcc
 BuildRequires:    adobe-mappings-cmap-devel adobe-mappings-pdf-devel
@@ -206,6 +207,12 @@ install -m 0755 -d %{buildroot}%{_datadir}/%{name}/conf.d/
 %{_bindir}/dvipdf
 
 %changelog
+* Fri Nov 01 2024 liningjie <liningjie@xfusion.com> - 9.55.0-15
+- Type:CVE
+- ID:NA
+- SUG:NA
+- DECS: Fix CVE-2024-46951
+
 * Wed Oct 30 2024 liningjie <liningjie@xfusion.com> - 9.55.0-14
 - Type:CVE
 - ID:NA