Avoid OOB read in URL parser

This commit is contained in:
gaozhekang 2020-11-04 11:19:40 +08:00
parent 838dff05ba
commit ff6d5cbf47
2 changed files with 84 additions and 1 deletions

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@ -0,0 +1,79 @@
From 4cb8fa4aa5dea72bc66ea950e3fc193385bb7175 Mon Sep 17 00:00:00 2001
From: gaozhekang <gaozhekang@huawei.com>
Date: Wed, 4 Nov 2020 11:12:53 +0800
Subject: [PATCH] src: avoid OOB read in URL parser
This is not a big concern, because right now, all (non-test) inputs
to the parser are `'\0'`-terminated, but we should be future-proof
here and not perform these OOB reads.
---
src/node_url.cc | 6 +++---
test/cctest/test_url.cc | 20 ++++++++++++++++++++
2 files changed, 23 insertions(+), 3 deletions(-)
diff --git a/src/node_url.cc b/src/node_url.cc
index 7bfcde5..41492b1 100644
--- a/src/node_url.cc
+++ b/src/node_url.cc
@@ -1487,7 +1487,7 @@ void URL::Parse(const char* input,
state = kSpecialRelativeOrAuthority;
} else if (special) {
state = kSpecialAuthoritySlashes;
- } else if (p[1] == '/') {
+ } else if (p + 1 < end && p[1] == '/') {
state = kPathOrAuthority;
p++;
} else {
@@ -1547,7 +1547,7 @@ void URL::Parse(const char* input,
}
break;
case kSpecialRelativeOrAuthority:
- if (ch == '/' && p[1] == '/') {
+ if (ch == '/' && p + 1 < end && p[1] == '/') {
state = kSpecialAuthorityIgnoreSlashes;
p++;
} else {
@@ -1695,7 +1695,7 @@ void URL::Parse(const char* input,
break;
case kSpecialAuthoritySlashes:
state = kSpecialAuthorityIgnoreSlashes;
- if (ch == '/' && p[1] == '/') {
+ if (ch == '/' && p + 1 < end && p[1] == '/') {
p++;
} else {
continue;
diff --git a/test/cctest/test_url.cc b/test/cctest/test_url.cc
index ddef534..810cbc2 100644
--- a/test/cctest/test_url.cc
+++ b/test/cctest/test_url.cc
@@ -80,6 +80,26 @@ TEST_F(URLTest, Base3) {
EXPECT_EQ(simple.path(), "/baz");
}
+TEST_F(URLTest, TruncatedAfterProtocol) {
+ char input[2] = { 'q', ':' };
+ URL simple(input, sizeof(input));
+
+ EXPECT_FALSE(simple.flags() & URL_FLAGS_FAILED);
+ EXPECT_EQ(simple.protocol(), "q:");
+ EXPECT_EQ(simple.host(), "");
+ EXPECT_EQ(simple.path(), "/");
+}
+
+TEST_F(URLTest, TruncatedAfterProtocol2) {
+ char input[6] = { 'h', 't', 't', 'p', ':', '/' };
+ URL simple(input, sizeof(input));
+
+ EXPECT_TRUE(simple.flags() & URL_FLAGS_FAILED);
+ EXPECT_EQ(simple.protocol(), "http:");
+ EXPECT_EQ(simple.host(), "");
+ EXPECT_EQ(simple.path(), "");
+}
+
TEST_F(URLTest, ToFilePath) {
#define T(url, path) EXPECT_EQ(path, URL(url).ToFilePath())
T("http://example.org/foo/bar", "");
--
2.23.0

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@ -57,7 +57,7 @@
Name: nodejs Name: nodejs
Epoch: %{nodejs_epoch} Epoch: %{nodejs_epoch}
Version: %{nodejs_version} Version: %{nodejs_version}
Release: 1 Release: 2
Summary: JavaScript runtime Summary: JavaScript runtime
License: MIT and ASL 2.0 and ISC and BSD License: MIT and ASL 2.0 and ISC and BSD
Group: Development/Languages Group: Development/Languages
@ -72,6 +72,7 @@ Source7: nodejs_native.attr
Patch1: 0001-Disable-running-gyp-on-shared-deps.patch Patch1: 0001-Disable-running-gyp-on-shared-deps.patch
Patch2: 0002-Install-both-binaries-and-use-libdir.patch Patch2: 0002-Install-both-binaries-and-use-libdir.patch
Patch3: 0003-build-auto-load-ICU-data-from-with-icu-default-data-.patch Patch3: 0003-build-auto-load-ICU-data-from-with-icu-default-data-.patch
Patch4: 0004-src-avoid-OOB-read-in-URL-parser.patch
BuildRequires: python2-devel python3-devel zlib-devel gcc >= 6.3.0 BuildRequires: python2-devel python3-devel zlib-devel gcc >= 6.3.0
BuildRequires: gcc-c++ >= 6.3.0 nodejs-packaging chrpath libatomic BuildRequires: gcc-c++ >= 6.3.0 nodejs-packaging chrpath libatomic
@ -455,6 +456,9 @@ end
%changelog %changelog
* Wed Nov 04 2020 gaozhekang <gaozhekang@huawei.com> - 1:10.21.0-2
- avoid OOB read in URL parser
* Mon Aug 24 2020 lingsheng <lingsheng@huawei.com> - 1:10.21.0-1 * Mon Aug 24 2020 lingsheng <lingsheng@huawei.com> - 1:10.21.0-1
- Update to 10.21.0 - Update to 10.21.0