[3.0] prometheus - Fix CVE-2023-45288

SPECS/prometheus/CVE-2023-45288.patch

@@ -0,0 +1,86 @@
+From 87bba52321835fa92f7c91be1b8eef89a93d2506 Mon Sep 17 00:00:00 2001
+From: Damien Neil <[email protected]>
+Date: Wed, 10 Jan 2024 13:41:39 -0800
+Subject: [PATCH] http2: close connections when receiving too many headers
+
+Maintaining HPACK state requires that we parse and process
+all HEADERS and CONTINUATION frames on a connection.
+When a request's headers exceed MaxHeaderBytes, we don't
+allocate memory to store the excess headers but we do
+parse them. This permits an attacker to cause an HTTP/2
+endpoint to read arbitrary amounts of data, all associated
+with a request which is going to be rejected.
+
+Set a limit on the amount of excess header frames we
+will process before closing a connection.
+
+Thanks to Bartek Nowotarski for reporting this issue.
+
+Fixes CVE-2023-45288
+Fixes golang/go#65051
+
+Change-Id: I15df097268df13bb5a9e9d3a5c04a8a141d850f6
+Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/2130527
+Reviewed-by: Roland Shoemaker <[email protected]>
+Reviewed-by: Tatiana Bradley <[email protected]>
+Reviewed-on: https://go-review.googlesource.com/c/net/+/576155
+Reviewed-by: Dmitri Shuralyov <[email protected]>
+Auto-Submit: Dmitri Shuralyov <[email protected]>
+Reviewed-by: Than McIntosh <[email protected]>
+LUCI-TryBot-Result: Go LUCI <[email protected]>
+---
+ vendor/golang.org/x/net/http2/frame.go | 31 ++++++++++++++++++++++++++
+ 1 file changed, 31 insertions(+)
+
+diff --git a/vendor/golang.org/x/net/http2/frame.go b/vendor/golang.org/x/net/http2/frame.go
+index c1f6b90..175c154 100644
+--- a/vendor/golang.org/x/net/http2/frame.go
++++ b/vendor/golang.org/x/net/http2/frame.go
+@@ -1565,6 +1565,7 @@ func (fr *Framer) readMetaFrame(hf *HeadersFrame) (*MetaHeadersFrame, error) {
+ 		if size > remainSize {
+ 			hdec.SetEmitEnabled(false)
+ 			mh.Truncated = true
++			remainSize = 0
+ 			return
+ 		}
+ 		remainSize -= size
+@@ -1577,6 +1578,36 @@ func (fr *Framer) readMetaFrame(hf *HeadersFrame) (*MetaHeadersFrame, error) {
+ 	var hc headersOrContinuation = hf
+ 	for {
+ 		frag := hc.HeaderBlockFragment()
++
++		// Avoid parsing large amounts of headers that we will then discard.
++		// If the sender exceeds the max header list size by too much,
++		// skip parsing the fragment and close the connection.
++		//
++		// "Too much" is either any CONTINUATION frame after we've already
++		// exceeded the max header list size (in which case remainSize is 0),
++		// or a frame whose encoded size is more than twice the remaining
++		// header list bytes we're willing to accept.
++		if int64(len(frag)) > int64(2*remainSize) {
++			if VerboseLogs {
++				log.Printf("http2: header list too large")
++			}
++			// It would be nice to send a RST_STREAM before sending the GOAWAY,
++			// but the struture of the server's frame writer makes this difficult.
++			return nil, ConnectionError(ErrCodeProtocol)
++		}
++
++		// Also close the connection after any CONTINUATION frame following an
++		// invalid header, since we stop tracking the size of the headers after
++		// an invalid one.
++		if invalid != nil {
++			if VerboseLogs {
++				log.Printf("http2: invalid header: %v", invalid)
++			}
++			// It would be nice to send a RST_STREAM before sending the GOAWAY,
++			// but the struture of the server's frame writer makes this difficult.
++			return nil, ConnectionError(ErrCodeProtocol)
++		}
++
+ 		if _, err := hdec.Write(frag); err != nil {
+ 			return nil, ConnectionError(ErrCodeCompression)
+ 		}
+-- 
+2.44.0
+

SPECS/prometheus/prometheus.spec

@@ -4,7 +4,7 @@
 Summary:        Prometheus monitoring system and time series database
 Name:           prometheus
 Version:        2.45.4
-Release:        3%{?dist}
+Release:        4%{?dist}
 License:        Apache-2.0
 Vendor:         Microsoft Corporation
 Distribution:   Azure Linux
@@ -18,7 +18,8 @@ Source5:        prometheus.logrotate
 Source6:        promu-%{promu_version}.tar.gz
 # Debian patch for default settings
 Patch0:         02-Default_settings.patch
-Patch1:         CVE-2024-6104.patch
+Patch1:         CVE-2023-45288.patch
+Patch2:         CVE-2024-6104.patch
 BuildRequires:  golang
 BuildRequires:  nodejs
 BuildRequires:  nodejs-npm
@@ -135,6 +136,9 @@ fi
 %doc README.md RELEASE.md documentation
 
 %changelog
+* Wed Nov 06 2024 Nicolas Guibourge <[email protected]> - 2.45.4-4
+- Fix CVE-2023-45288
+
 * Fri Aug 02 2024 Bala <[email protected]> - 2.45.4-3
 - Fix CVE-2024-6104 by patching vendor gomodule