64 lines
1.8 KiB
Diff
64 lines
1.8 KiB
Diff
From b9893bf221e4f5791631c8e7152a10a69b57b8de Mon Sep 17 00:00:00 2001
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From: bwzhang <zhangbowei@kylinos.cn>
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Date: Wed, 24 Apr 2024 10:37:19 +0800
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Subject: [PATCH] fix CVE-2024-28180
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---
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vendor/gopkg.in/square/go-jose.v2/encoding.go | 21 +++++++++++++++----
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1 file changed, 17 insertions(+), 4 deletions(-)
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diff --git a/vendor/gopkg.in/square/go-jose.v2/encoding.go b/vendor/gopkg.in/square/go-jose.v2/encoding.go
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index 70f7385..c31eb91 100644
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--- a/vendor/gopkg.in/square/go-jose.v2/encoding.go
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+++ b/vendor/gopkg.in/square/go-jose.v2/encoding.go
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@@ -21,6 +21,7 @@ import (
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"compress/flate"
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"encoding/base64"
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"encoding/binary"
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+ "fmt"
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"io"
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"math/big"
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"strings"
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@@ -85,7 +86,7 @@ func decompress(algorithm CompressionAlgorithm, input []byte) ([]byte, error) {
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}
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}
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-// Compress with DEFLATE
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+// deflate compresses the input.
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func deflate(input []byte) ([]byte, error) {
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output := new(bytes.Buffer)
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@@ -97,15 +98,27 @@ func deflate(input []byte) ([]byte, error) {
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return output.Bytes(), err
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}
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-// Decompress with DEFLATE
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+// inflate decompresses the input.
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+//
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+// Errors if the decompressed data would be >250kB or >10x the size of the
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+// compressed data, whichever is larger
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func inflate(input []byte) ([]byte, error) {
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output := new(bytes.Buffer)
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reader := flate.NewReader(bytes.NewBuffer(input))
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- _, err := io.Copy(output, reader)
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- if err != nil {
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+ maxCompressedSize := 10 * int64(len(input))
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+ if maxCompressedSize < 250000 {
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+ maxCompressedSize = 250000
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+ }
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+
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+ limit := maxCompressedSize + 1
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+ n, err := io.CopyN(output, reader, limit)
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+ if err != nil && err != io.EOF {
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return nil, err
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}
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+ if n == limit {
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+ return nil, fmt.Errorf("uncompressed data would be too large (>%d bytes)", maxCompressedSize)
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+ }
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err = reader.Close()
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return output.Bytes(), err
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--
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2.20.1
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