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-rw-r--r--meta/recipes-core/libxml/libxml2/0001-CVE-2015-1819-Enforce-the-reader-to-run-in-constant-.patch181
1 files changed, 0 insertions, 181 deletions
diff --git a/meta/recipes-core/libxml/libxml2/0001-CVE-2015-1819-Enforce-the-reader-to-run-in-constant-.patch b/meta/recipes-core/libxml/libxml2/0001-CVE-2015-1819-Enforce-the-reader-to-run-in-constant-.patch
deleted file mode 100644
index 96d58f9dd6..0000000000
--- a/meta/recipes-core/libxml/libxml2/0001-CVE-2015-1819-Enforce-the-reader-to-run-in-constant-.patch
+++ /dev/null
@@ -1,181 +0,0 @@
-From 213f1fe0d76d30eaed6e5853057defc43e6df2c9 Mon Sep 17 00:00:00 2001
-From: Daniel Veillard <veillard@redhat.com>
-Date: Tue, 14 Apr 2015 17:41:48 +0800
-Subject: [PATCH] CVE-2015-1819 Enforce the reader to run in constant memory
-
-One of the operation on the reader could resolve entities
-leading to the classic expansion issue. Make sure the
-buffer used for xmlreader operation is bounded.
-Introduce a new allocation type for the buffers for this effect.
-
-Upstream-Status: Backport
-
-Signed-off-by: Yue Tao <Yue.Tao@windriver.com>
-Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com>
----
- buf.c | 43 ++++++++++++++++++++++++++++++++++++++++++-
- include/libxml/tree.h | 3 ++-
- xmlreader.c | 20 +++++++++++++++++++-
- 3 files changed, 63 insertions(+), 3 deletions(-)
-
-diff --git a/buf.c b/buf.c
-index 6efc7b6..07922ff 100644
---- a/buf.c
-+++ b/buf.c
-@@ -27,6 +27,7 @@
- #include <libxml/tree.h>
- #include <libxml/globals.h>
- #include <libxml/tree.h>
-+#include <libxml/parserInternals.h> /* for XML_MAX_TEXT_LENGTH */
- #include "buf.h"
-
- #define WITH_BUFFER_COMPAT
-@@ -299,7 +300,8 @@ xmlBufSetAllocationScheme(xmlBufPtr buf,
- if ((scheme == XML_BUFFER_ALLOC_DOUBLEIT) ||
- (scheme == XML_BUFFER_ALLOC_EXACT) ||
- (scheme == XML_BUFFER_ALLOC_HYBRID) ||
-- (scheme == XML_BUFFER_ALLOC_IMMUTABLE)) {
-+ (scheme == XML_BUFFER_ALLOC_IMMUTABLE) ||
-+ (scheme == XML_BUFFER_ALLOC_BOUNDED)) {
- buf->alloc = scheme;
- if (buf->buffer)
- buf->buffer->alloc = scheme;
-@@ -458,6 +460,18 @@ xmlBufGrowInternal(xmlBufPtr buf, size_t len) {
- size = buf->use + len + 100;
- #endif
-
-+ if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
-+ /*
-+ * Used to provide parsing limits
-+ */
-+ if ((buf->use + len >= XML_MAX_TEXT_LENGTH) ||
-+ (buf->size >= XML_MAX_TEXT_LENGTH)) {
-+ xmlBufMemoryError(buf, "buffer error: text too long\n");
-+ return(0);
-+ }
-+ if (size >= XML_MAX_TEXT_LENGTH)
-+ size = XML_MAX_TEXT_LENGTH;
-+ }
- if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {
- size_t start_buf = buf->content - buf->contentIO;
-
-@@ -739,6 +753,15 @@ xmlBufResize(xmlBufPtr buf, size_t size)
- CHECK_COMPAT(buf)
-
- if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);
-+ if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
-+ /*
-+ * Used to provide parsing limits
-+ */
-+ if (size >= XML_MAX_TEXT_LENGTH) {
-+ xmlBufMemoryError(buf, "buffer error: text too long\n");
-+ return(0);
-+ }
-+ }
-
- /* Don't resize if we don't have to */
- if (size < buf->size)
-@@ -867,6 +890,15 @@ xmlBufAdd(xmlBufPtr buf, const xmlChar *str, int len) {
-
- needSize = buf->use + len + 2;
- if (needSize > buf->size){
-+ if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
-+ /*
-+ * Used to provide parsing limits
-+ */
-+ if (needSize >= XML_MAX_TEXT_LENGTH) {
-+ xmlBufMemoryError(buf, "buffer error: text too long\n");
-+ return(-1);
-+ }
-+ }
- if (!xmlBufResize(buf, needSize)){
- xmlBufMemoryError(buf, "growing buffer");
- return XML_ERR_NO_MEMORY;
-@@ -938,6 +970,15 @@ xmlBufAddHead(xmlBufPtr buf, const xmlChar *str, int len) {
- }
- needSize = buf->use + len + 2;
- if (needSize > buf->size){
-+ if (buf->alloc == XML_BUFFER_ALLOC_BOUNDED) {
-+ /*
-+ * Used to provide parsing limits
-+ */
-+ if (needSize >= XML_MAX_TEXT_LENGTH) {
-+ xmlBufMemoryError(buf, "buffer error: text too long\n");
-+ return(-1);
-+ }
-+ }
- if (!xmlBufResize(buf, needSize)){
- xmlBufMemoryError(buf, "growing buffer");
- return XML_ERR_NO_MEMORY;
-diff --git a/include/libxml/tree.h b/include/libxml/tree.h
-index 2f90717..4a9b3bc 100644
---- a/include/libxml/tree.h
-+++ b/include/libxml/tree.h
-@@ -76,7 +76,8 @@ typedef enum {
- XML_BUFFER_ALLOC_EXACT, /* grow only to the minimal size */
- XML_BUFFER_ALLOC_IMMUTABLE, /* immutable buffer */
- XML_BUFFER_ALLOC_IO, /* special allocation scheme used for I/O */
-- XML_BUFFER_ALLOC_HYBRID /* exact up to a threshold, and doubleit thereafter */
-+ XML_BUFFER_ALLOC_HYBRID, /* exact up to a threshold, and doubleit thereafter */
-+ XML_BUFFER_ALLOC_BOUNDED /* limit the upper size of the buffer */
- } xmlBufferAllocationScheme;
-
- /**
-diff --git a/xmlreader.c b/xmlreader.c
-index f19e123..471e7e2 100644
---- a/xmlreader.c
-+++ b/xmlreader.c
-@@ -2091,6 +2091,9 @@ xmlNewTextReader(xmlParserInputBufferPtr input, const char *URI) {
- "xmlNewTextReader : malloc failed\n");
- return(NULL);
- }
-+ /* no operation on a reader should require a huge buffer */
-+ xmlBufSetAllocationScheme(ret->buffer,
-+ XML_BUFFER_ALLOC_BOUNDED);
- ret->sax = (xmlSAXHandler *) xmlMalloc(sizeof(xmlSAXHandler));
- if (ret->sax == NULL) {
- xmlBufFree(ret->buffer);
-@@ -3616,6 +3619,7 @@ xmlTextReaderConstValue(xmlTextReaderPtr reader) {
- return(((xmlNsPtr) node)->href);
- case XML_ATTRIBUTE_NODE:{
- xmlAttrPtr attr = (xmlAttrPtr) node;
-+ const xmlChar *ret;
-
- if ((attr->children != NULL) &&
- (attr->children->type == XML_TEXT_NODE) &&
-@@ -3629,10 +3633,21 @@ xmlTextReaderConstValue(xmlTextReaderPtr reader) {
- "xmlTextReaderSetup : malloc failed\n");
- return (NULL);
- }
-+ xmlBufSetAllocationScheme(reader->buffer,
-+ XML_BUFFER_ALLOC_BOUNDED);
- } else
- xmlBufEmpty(reader->buffer);
- xmlBufGetNodeContent(reader->buffer, node);
-- return(xmlBufContent(reader->buffer));
-+ ret = xmlBufContent(reader->buffer);
-+ if (ret == NULL) {
-+ /* error on the buffer best to reallocate */
-+ xmlBufFree(reader->buffer);
-+ reader->buffer = xmlBufCreateSize(100);
-+ xmlBufSetAllocationScheme(reader->buffer,
-+ XML_BUFFER_ALLOC_BOUNDED);
-+ ret = BAD_CAST "";
-+ }
-+ return(ret);
- }
- break;
- }
-@@ -5131,6 +5146,9 @@ xmlTextReaderSetup(xmlTextReaderPtr reader,
- "xmlTextReaderSetup : malloc failed\n");
- return (-1);
- }
-+ /* no operation on a reader should require a huge buffer */
-+ xmlBufSetAllocationScheme(reader->buffer,
-+ XML_BUFFER_ALLOC_BOUNDED);
- if (reader->sax == NULL)
- reader->sax = (xmlSAXHandler *) xmlMalloc(sizeof(xmlSAXHandler));
- if (reader->sax == NULL) {
---
-1.7.9.5
-
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-19 13:10:59 +0000