ghostscript: fix CVE-2024-33869

(From OE-Core rev: d24e9c6c1016fbe8522f647aca76d93ab9cc5a41)

Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/recipes-extended/ghostscript/ghostscript/CVE-2024-33869-0001.patch

@@ -0,0 +1,39 @@
+From 5ae2e320d69a7d0973011796bd388cd5befa1a43 Mon Sep 17 00:00:00 2001
+From: Ken Sharp <Ken.Sharp@artifex.com>
+Date: Tue, 26 Mar 2024 12:02:57 +0000
+Subject: [PATCH 2/5] Bug #707691
+
+Part 1; when stripping a potential Current Working Dirctory specifier
+from a path, make certain it really is a CWD, and not simply large
+ebough to be a CWD.
+
+Reasons are in the bug thread, this is not (IMO) serious.
+
+This is part of the fix for CVE-2024-33869
+
+CVE: CVE-2024-33869
+
+Upstream-Status: Backport [https://cgit.ghostscript.com/cgi-bin/cgit.cgi/ghostpdl.git/commit/?id=5ae2e320d69a7d0973]
+
+Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
+---
+ base/gpmisc.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/base/gpmisc.c b/base/gpmisc.c
+index c4a69b0..1d4d5d8 100644
+--- a/base/gpmisc.c
++++ b/base/gpmisc.c
+@@ -1164,8 +1164,8 @@ gp_validate_path_len(const gs_memory_t *mem,
+
+             continue;
+         }
+-        else if (code < 0 && cdirstrl > 0 && prefix_len == 0 && buffer == bufferfull) {
+-            buffer = bufferfull + cdirstrl + dirsepstrl;
++        else if (code < 0 && cdirstrl > 0 && prefix_len == 0 && buffer == bufferfull
++            && memcmp(buffer, cdirstr, cdirstrl) && !memcmp(buffer + cdirstrl, dirsepstr, dirsepstrl)) {
+             continue;
+         }
+         break;
+--
+2.40.0

meta/recipes-extended/ghostscript/ghostscript/CVE-2024-33869-0002.patch

@@ -0,0 +1,52 @@
+From f5336e5b4154f515ac83bc5b9eba94302e6618d4 Mon Sep 17 00:00:00 2001
+From: Ken Sharp <Ken.Sharp@artifex.com>
+Date: Tue, 26 Mar 2024 12:07:18 +0000
+Subject: [PATCH 3/5] Bug 707691 part 2
+
+See bug thread for details
+
+This is the second part of the fix for CVE-2024-33869
+
+CVE: CVE-2024-33869
+
+Upstream-Status: Backport [https://cgit.ghostscript.com/cgi-bin/cgit.cgi/ghostpdl.git/commit/?id=f5336e5b4154f515ac83]
+
+Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
+---
+ base/gpmisc.c | 21 +++++++++++++++++++++
+ 1 file changed, 21 insertions(+)
+
+diff --git a/base/gpmisc.c b/base/gpmisc.c
+index 1d4d5d8..b0d5c71 100644
+--- a/base/gpmisc.c
++++ b/base/gpmisc.c
+@@ -1090,6 +1090,27 @@ gp_validate_path_len(const gs_memory_t *mem,
+         rlen = len;
+     }
+     else {
++        char *test = (char *)path, *test1;
++        uint tlen = len, slen;
++
++        /* Look for any pipe (%pipe% or '|' specifications between path separators
++         * Reject any path spec which has a %pipe% or '|' anywhere except at the start.
++         */
++        while (tlen > 0) {
++            if (test[0] == '|' || (tlen > 5 && memcmp(test, "%pipe", 5) == 0)) {
++                code = gs_note_error(gs_error_invalidfileaccess);
++                goto exit;
++            }
++            test1 = test;
++            slen = search_separator((const char **)&test, path + len, test1, 1);
++            if(slen == 0)
++                break;
++            test += slen;
++            tlen -= test - test1;
++            if (test >= path + len)
++                break;
++        }
++
+         rlen = len+1;
+         bufferfull = (char *)gs_alloc_bytes(mem->thread_safe_memory, rlen + prefix_len, "gp_validate_path");
+         if (bufferfull == NULL)
+--
+2.40.0

meta/recipes-extended/ghostscript/ghostscript_10.02.1.bb

@@ -27,6 +27,8 @@ SRC_URI = "https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/downlo
            file://avoid-host-contamination.patch \
            file://configure.ac-add-option-to-explicitly-disable-neon.patch \
            file://CVE-2024-33870.patch \
+           file://CVE-2024-33869-0001.patch \
+           file://CVE-2024-33869-0002.patch \
            "
 
 SRC_URI[sha256sum] = "e429e4f5b01615a4f0f93a4128e8a1a4d932dff983b1774174c79c0630717ad9"