From d9cd9f38d955e4b98971cc2247b1e5397da7821c Mon Sep 17 00:00:00 2001 From: hanchao Date: Mon, 8 Aug 2022 17:26:39 +0800 Subject: [PATCH] golang: fix CVE-2022-32189 Score: 6.5 Reference: https://go-review.googlesource.com/c/go/+/419814 Conflict: NA Reason: fix CVE-2022-32189 --- ...o1.17-math-big-check-buffer-lengths-.patch | 125 ++++++++++++++++++ golang.spec | 9 +- 2 files changed, 133 insertions(+), 1 deletion(-) create mode 100644 0016-release-branch.go1.17-math-big-check-buffer-lengths-.patch diff --git a/0016-release-branch.go1.17-math-big-check-buffer-lengths-.patch b/0016-release-branch.go1.17-math-big-check-buffer-lengths-.patch new file mode 100644 index 0000000..78f8090 --- /dev/null +++ b/0016-release-branch.go1.17-math-big-check-buffer-lengths-.patch @@ -0,0 +1,125 @@ +From dc903a8196a831d23e9b6504239e09a9e6bcd98a Mon Sep 17 00:00:00 2001 +From: Roland Shoemaker +Date: Fri, 15 Jul 2022 10:43:44 -0700 +Subject: [PATCH] [release-branch.go1.17] math/big: check buffer lengths in + GobDecode + +In Float.GobDecode and Rat.GobDecode, check buffer sizes before +indexing slices. + +Updates #53871 +Fixes #54094 + +Change-Id: I1b652c32c2bc7a0e8aa7620f7be9b2740c568b0a +Reviewed-on: https://go-review.googlesource.com/c/go/+/417774 +TryBot-Result: Gopher Robot +Reviewed-by: Tatiana Bradley +Run-TryBot: Roland Shoemaker +(cherry picked from commit 055113ef364337607e3e72ed7d48df67fde6fc66) +Reviewed-on: https://go-review.googlesource.com/c/go/+/419814 +Reviewed-by: Julie Qiu +--- + src/math/big/floatmarsh.go | 7 +++++++ + src/math/big/floatmarsh_test.go | 12 ++++++++++++ + src/math/big/ratmarsh.go | 6 ++++++ + src/math/big/ratmarsh_test.go | 12 ++++++++++++ + 4 files changed, 37 insertions(+) + +diff --git a/src/math/big/floatmarsh.go b/src/math/big/floatmarsh.go +index d1c1dab069..990e085abe 100644 +--- a/src/math/big/floatmarsh.go ++++ b/src/math/big/floatmarsh.go +@@ -8,6 +8,7 @@ package big + + import ( + "encoding/binary" ++ "errors" + "fmt" + ) + +@@ -67,6 +68,9 @@ func (z *Float) GobDecode(buf []byte) error { + *z = Float{} + return nil + } ++ if len(buf) < 6 { ++ return errors.New("Float.GobDecode: buffer too small") ++ } + + if buf[0] != floatGobVersion { + return fmt.Errorf("Float.GobDecode: encoding version %d not supported", buf[0]) +@@ -83,6 +87,9 @@ func (z *Float) GobDecode(buf []byte) error { + z.prec = binary.BigEndian.Uint32(buf[2:]) + + if z.form == finite { ++ if len(buf) < 10 { ++ return errors.New("Float.GobDecode: buffer too small for finite form float") ++ } + z.exp = int32(binary.BigEndian.Uint32(buf[6:])) + z.mant = z.mant.setBytes(buf[10:]) + } +diff --git a/src/math/big/floatmarsh_test.go b/src/math/big/floatmarsh_test.go +index c056d78b80..401f45a51f 100644 +--- a/src/math/big/floatmarsh_test.go ++++ b/src/math/big/floatmarsh_test.go +@@ -137,3 +137,15 @@ func TestFloatJSONEncoding(t *testing.T) { + } + } + } ++ ++func TestFloatGobDecodeShortBuffer(t *testing.T) { ++ for _, tc := range [][]byte{ ++ []byte{0x1, 0x0, 0x0, 0x0}, ++ []byte{0x1, 0xfa, 0x0, 0x0, 0x0, 0x0}, ++ } { ++ err := NewFloat(0).GobDecode(tc) ++ if err == nil { ++ t.Error("expected GobDecode to return error for malformed input") ++ } ++ } ++} +diff --git a/src/math/big/ratmarsh.go b/src/math/big/ratmarsh.go +index fbc7b6002d..56102e845b 100644 +--- a/src/math/big/ratmarsh.go ++++ b/src/math/big/ratmarsh.go +@@ -45,12 +45,18 @@ func (z *Rat) GobDecode(buf []byte) error { + *z = Rat{} + return nil + } ++ if len(buf) < 5 { ++ return errors.New("Rat.GobDecode: buffer too small") ++ } + b := buf[0] + if b>>1 != ratGobVersion { + return fmt.Errorf("Rat.GobDecode: encoding version %d not supported", b>>1) + } + const j = 1 + 4 + i := j + binary.BigEndian.Uint32(buf[j-4:j]) ++ if len(buf) < int(i) { ++ return errors.New("Rat.GobDecode: buffer too small") ++ } + z.a.neg = b&1 != 0 + z.a.abs = z.a.abs.setBytes(buf[j:i]) + z.b.abs = z.b.abs.setBytes(buf[i:]) +diff --git a/src/math/big/ratmarsh_test.go b/src/math/big/ratmarsh_test.go +index 351d109f8d..55a9878bb8 100644 +--- a/src/math/big/ratmarsh_test.go ++++ b/src/math/big/ratmarsh_test.go +@@ -123,3 +123,15 @@ func TestRatXMLEncoding(t *testing.T) { + } + } + } ++ ++func TestRatGobDecodeShortBuffer(t *testing.T) { ++ for _, tc := range [][]byte{ ++ []byte{0x2}, ++ []byte{0x2, 0x0, 0x0, 0x0, 0xff}, ++ } { ++ err := NewRat(1, 2).GobDecode(tc) ++ if err == nil { ++ t.Error("expected GobDecode to return error for malformed input") ++ } ++ } ++} +-- +2.30.2 + diff --git a/golang.spec b/golang.spec index 173442a..943a4ff 100644 --- a/golang.spec +++ b/golang.spec @@ -66,7 +66,7 @@ Name: golang Version: 1.17.3 -Release: 5 +Release: 6 Summary: The Go Programming Language License: BSD and Public Domain URL: https://golang.org/ @@ -168,6 +168,7 @@ Patch6012: 0012-release-branch.go1.17-encoding-xml-use-iterative-Ski.patch Patch6013: 0013-release-branch.go1.17-compress-gzip-fix-stack-exhaus.patch Patch6014: 0014-release-branch.go1.17-crypto-tls-randomly-generate-t.patch Patch6015: 0015-release-branch.go1.17-crypto-rand-properly-handle-la.patch +Patch6016: 0016-release-branch.go1.17-math-big-check-buffer-lengths-.patch ExclusiveArch: %{golang_arches} @@ -402,6 +403,12 @@ fi %files devel -f go-tests.list -f go-misc.list -f go-src.list %changelog +* Mon Aug 8 2022 hanchao - 1.17.3-6 +- Type:CVE +- CVE:NA +- SUG:NA +- DESC: fix CVE-2022-32189 + * Tue Jul 26 2022 hanchao - 1.17.3-5 - Type:CVE - CVE:NA -- Gitee