File CVE-2024-22025.patch of Package nodejs16
Index: node-v16.20.2/lib/zlib.js
===================================================================
--- node-v16.20.2.orig/lib/zlib.js
+++ node-v16.20.2/lib/zlib.js
@@ -560,10 +560,11 @@ function processCallback() {
self.bytesWritten += inDelta;
const have = handle.availOutBefore - availOutAfter;
+ let streamBufferIsFull = false;
if (have > 0) {
const out = self._outBuffer.slice(self._outOffset, self._outOffset + have);
self._outOffset += have;
- self.push(out);
+ streamBufferIsFull = !self.push(out);
} else {
assert(have === 0, 'have should not go down');
}
@@ -588,13 +589,29 @@ function processCallback() {
handle.inOff += inDelta;
handle.availInBefore = availInAfter;
- this.write(handle.flushFlag,
- this.buffer, // in
- handle.inOff, // in_off
- handle.availInBefore, // in_len
- self._outBuffer, // out
- self._outOffset, // out_off
- self._chunkSize); // out_len
+
+ if (!streamBufferIsFull) {
+ this.write(handle.flushFlag,
+ this.buffer, // in
+ handle.inOff, // in_off
+ handle.availInBefore, // in_len
+ self._outBuffer, // out
+ self._outOffset, // out_off
+ self._chunkSize); // out_len
+ } else {
+ const oldRead = self._read;
+ self._read = (n) => {
+ self._read = oldRead;
+ this.write(handle.flushFlag,
+ this.buffer, // in
+ handle.inOff, // in_off
+ handle.availInBefore, // in_len
+ self._outBuffer, // out
+ self._outOffset, // out_off
+ self._chunkSize); // out_len
+ self._read(n);
+ };
+ }
return;
}
Index: node-v16.20.2/test/parallel/test-zlib-brotli-16GB.js
===================================================================
--- /dev/null
+++ node-v16.20.2/test/parallel/test-zlib-brotli-16GB.js
@@ -0,0 +1,22 @@
+'use strict';
+
+const common = require('../common');
+const { createBrotliDecompress } = require('node:zlib');
+const strictEqual = require('node:assert').strictEqual;
+
+// This tiny HEX string is a 16GB file.
+// This test verifies that the stream actually stops.
+/* eslint-disable max-len */
+const content = 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+
+const buf = Buffer.from(content, 'hex');
+
+const decoder = createBrotliDecompress();
+decoder.end(buf);
+
+// We need to wait to verify that the libuv thread pool had time
+// to process the data and the buffer is not empty.
+setTimeout(common.mustCall(() => {
+ // There is only one chunk in the buffer
+ strictEqual(decoder._readableState.buffer.length, 1);
+}), common.platformTimeout(500));
Index: node-v16.20.2/test/parallel/test-zlib-params.js
===================================================================
--- node-v16.20.2.orig/test/parallel/test-zlib-params.js
+++ node-v16.20.2/test/parallel/test-zlib-params.js
@@ -12,23 +12,29 @@ const deflater = zlib.createDeflate(opts
const chunk1 = file.slice(0, chunkSize);
const chunk2 = file.slice(chunkSize);
const blkhdr = Buffer.from([0x00, 0x5a, 0x82, 0xa5, 0x7d]);
-const expected = Buffer.concat([blkhdr, chunk2]);
-let actual;
+const blkftr = Buffer.from('010000ffff7dac3072', 'hex');
+const expected = Buffer.concat([blkhdr, chunk2, blkftr]);
+const bufs = [];
+
+function read() {
+ let buf;
+ while ((buf = deflater.read()) !== null) {
+ bufs.push(buf);
+ }
+}
deflater.write(chunk1, function() {
deflater.params(0, zlib.constants.Z_DEFAULT_STRATEGY, function() {
while (deflater.read());
- deflater.end(chunk2, function() {
- const bufs = [];
- let buf;
- while ((buf = deflater.read()) !== null)
- bufs.push(buf);
- actual = Buffer.concat(bufs);
- });
+
+ deflater.on('readable', read);
+
+ deflater.end(chunk2);
});
while (deflater.read());
});
process.once('exit', function() {
+ const actual = Buffer.concat(bufs);
assert.deepStrictEqual(actual, expected);
});