1 files changed, 0 insertions, 111 deletions
diff --git a/gnu/packages/patches/mupdf-CVE-2017-17858.patch b/gnu/packages/patches/mupdf-CVE-2017-17858.patch
deleted file mode 100644
index 66df127509..0000000000
--- a/gnu/packages/patches/mupdf-CVE-2017-17858.patch
+++ /dev/null
@@ -1,111 +0,0 @@
-Fix CVE-2017-17858:
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17858
-https://bugs.ghostscript.com/show_bug.cgi?id=698819
-https://github.com/mzet-/Security-Advisories/blob/master/mzet-adv-2017-01.md
-
-Patch copied from upstream source repository:
-
-https://git.ghostscript.com/?p=mupdf.git;a=commit;h=55c3f68d638ac1263a386e0aaa004bb6e8bde731
-
-From 55c3f68d638ac1263a386e0aaa004bb6e8bde731 Mon Sep 17 00:00:00 2001
-From: Sebastian Rasmussen <sebras@gmail.com>
-Date: Mon, 11 Dec 2017 14:09:15 +0100
-Subject: [PATCH] Bugs 698804/698810/698811: Keep PDF object numbers below
- limit.
-
-This ensures that:
- * xref tables with objects pointers do not grow out of bounds.
- * other readers, e.g. Adobe Acrobat can parse PDFs written by mupdf.
----
- include/mupdf/pdf/object.h |  3 +++
- source/pdf/pdf-repair.c    |  5 +----
- source/pdf/pdf-xref.c      | 21 ++++++++++++---------
- 3 files changed, 16 insertions(+), 13 deletions(-)
-
-diff --git a/include/mupdf/pdf/object.h b/include/mupdf/pdf/object.h
-index 21ed8595..4177112b 100644
---- a/include/mupdf/pdf/object.h
-+++ b/include/mupdf/pdf/object.h
-@@ -3,6 +3,9 @@
- 
- typedef struct pdf_document_s pdf_document;
- 
-+/* Defined in PDF 1.7 according to Acrobat limit. */
-+#define PDF_MAX_OBJECT_NUMBER 8388607
-+
- /*
-  * Dynamic objects.
-  * The same type of objects as found in PDF and PostScript.
-diff --git a/source/pdf/pdf-repair.c b/source/pdf/pdf-repair.c
-index ca149bd3..0c29758e 100644
---- a/source/pdf/pdf-repair.c
-+++ b/source/pdf/pdf-repair.c
-@@ -6,9 +6,6 @@
- 
- /* Scan file for objects and reconstruct xref table */
- 
--/* Define in PDF 1.7 to be 8388607, but mupdf is more lenient. */
--#define MAX_OBJECT_NUMBER (10 << 20)
--
- struct entry
- {
- 	int num;
-@@ -436,7 +433,7 @@ pdf_repair_xref(fz_context *ctx, pdf_document *doc)
- 					break;
- 				}
- 
--				if (num <= 0 || num > MAX_OBJECT_NUMBER)
-+				if (num <= 0 || num > PDF_MAX_OBJECT_NUMBER)
- 				{
- 					fz_warn(ctx, "ignoring object with invalid object number (%d %d R)", num, gen);
- 					goto have_next_token;
-diff --git a/source/pdf/pdf-xref.c b/source/pdf/pdf-xref.c
-index 00586dbd..6284e70b 100644
---- a/source/pdf/pdf-xref.c
-+++ b/source/pdf/pdf-xref.c
-@@ -868,11 +868,12 @@ pdf_read_old_xref(fz_context *ctx, pdf_document *doc, pdf_lexbuf *buf)
- 			fz_seek(ctx, file, -(2 + (int)strlen(s)), SEEK_CUR);
- 		}
- 
--		if (ofs < 0)
--			fz_throw(ctx, FZ_ERROR_GENERIC, "out of range object num in xref: %d", (int)ofs);
--		if (ofs > INT64_MAX - len)
--			fz_throw(ctx, FZ_ERROR_GENERIC, "xref section object numbers too big");
--
-+		if (ofs < 0 || ofs > PDF_MAX_OBJECT_NUMBER
-+				|| len < 0 || len > PDF_MAX_OBJECT_NUMBER
-+				|| ofs + len - 1 > PDF_MAX_OBJECT_NUMBER)
-+		{
-+			fz_throw(ctx, FZ_ERROR_GENERIC, "xref subsection object numbers are out of range");
-+		}
- 		/* broken pdfs where size in trailer undershoots entries in xref sections */
- 		if (ofs + len > xref_len)
- 		{
-@@ -933,10 +934,8 @@ pdf_read_new_xref_section(fz_context *ctx, pdf_document *doc, fz_stream *stm, in
- 	pdf_xref_entry *table;
- 	int i, n;
- 
--	if (i0 < 0 || i1 < 0 || i0 > INT_MAX - i1)
--		fz_throw(ctx, FZ_ERROR_GENERIC, "negative xref stream entry index");
--	//if (i0 + i1 > pdf_xref_len(ctx, doc))
--	//	fz_throw(ctx, FZ_ERROR_GENERIC, "xref stream has too many entries");
-+	if (i0 < 0 || i0 > PDF_MAX_OBJECT_NUMBER || i1 < 0 || i1 > PDF_MAX_OBJECT_NUMBER || i0 + i1 - 1 > PDF_MAX_OBJECT_NUMBER)
-+		fz_throw(ctx, FZ_ERROR_GENERIC, "xref subsection object numbers are out of range");
- 
- 	table = pdf_xref_find_subsection(ctx, doc, i0, i1);
- 	for (i = i0; i < i0 + i1; i++)
-@@ -2086,6 +2085,10 @@ pdf_create_object(fz_context *ctx, pdf_document *doc)
- 	/* TODO: reuse free object slots by properly linking free object chains in the ofs field */
- 	pdf_xref_entry *entry;
- 	int num = pdf_xref_len(ctx, doc);
-+
-+	if (num > PDF_MAX_OBJECT_NUMBER)
-+		fz_throw(ctx, FZ_ERROR_GENERIC, "too many objects stored in pdf");
-+
- 	entry = pdf_get_incremental_xref_entry(ctx, doc, num);
- 	entry->type = 'f';
- 	entry->ofs = -1;
--- 
-2.16.1
-