[meta][dunfell][PATCH 2/2] curl: Add fix for CVE-2023-23916

[pawan <badganchipv@gmail.com>]

From: Pawan Badganchi <badganchipv@gmail.com>

Add below patch to fix CVE-2023-23916

CVE-2023-23916.patch

Link: https://curl.se/docs/CVE-2023-23916.html

Signed-off-by: Pawan Badganchi <Pawan.Badganchi@kpit.com>
Signed-off-by: Pawan Badganchi <badganchipv@gmail.com>
---
 .../curl/curl/CVE-2023-23916.patch            | 222 ++++++++++++++++++
 meta/recipes-support/curl/curl_7.82.0.bb      |   1 +
 2 files changed, 223 insertions(+)
 create mode 100644 meta/recipes-support/curl/curl/CVE-2023-23916.patch

diff --git a/meta/recipes-support/curl/curl/CVE-2023-23916.patch b/meta/recipes-support/curl/curl/CVE-2023-23916.patch
new file mode 100644
index 0000000000..6a1be173cd
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2023-23916.patch
@@ -0,0 +1,222 @@
+Backport of:
+
+From 119fb187192a9ea13dc90d9d20c215fc82799ab9 Mon Sep 17 00:00:00 2001
+From: Patrick Monnerat <patrick@monnerat.net>
+Date: Mon, 13 Feb 2023 08:33:09 +0100
+Subject: [PATCH] content_encoding: do not reset stage counter for each header
+
+Test 418 verifies
+
+Closes #10492
+
+CVE: CVE-2023-23916
+Upstream-Status: Backport [https://github.com/curl/curl/commit/119fb187192a9ea13dc.patch]
+Signed-off-by: Pawan Badganchi <Pawan.Badganchi@kpit.com>
+---
+ lib/content_encoding.c  |   7 +-
+ lib/urldata.h           |   1 +
+ tests/data/Makefile.inc |   2 +-
+ tests/data/test387      |   2 +-
+ tests/data/test418      | 152 ++++++++++++++++++++++++++++++++++++++++
+ 5 files changed, 158 insertions(+), 6 deletions(-)
+ create mode 100644 tests/data/test418
+
+--- a/lib/content_encoding.c
++++ b/lib/content_encoding.c
+@@ -1035,7 +1035,6 @@ CURLcode Curl_build_unencoding_stack(str
+                                      const char *enclist, int maybechunked)
+ {
+   struct SingleRequest *k = &data->req;
+-  int counter = 0;
+ 
+   do {
+     const char *name;
+@@ -1070,9 +1069,9 @@ CURLcode Curl_build_unencoding_stack(str
+       if(!encoding)
+         encoding = &error_encoding;  /* Defer error at stack use. */
+ 
+-      if(++counter >= MAX_ENCODE_STACK) {
+-        failf(data, "Reject response due to %u content encodings",
+-              counter);
++      if(k->writer_stack_depth++ >= MAX_ENCODE_STACK) {
++        failf(data, "Reject response due to more than %u content encodings",
++              MAX_ENCODE_STACK);
+         return CURLE_BAD_CONTENT_ENCODING;
+       }
+       /* Stack the unencoding stage. */
+--- a/lib/urldata.h
++++ b/lib/urldata.h
+@@ -708,6 +708,7 @@ struct SingleRequest {
+   struct dohdata *doh; /* DoH specific data for this request */
+ #endif
+   unsigned char setcookies;
++  unsigned char writer_stack_depth; /* Unencoding stack depth. */
+   BIT(header);        /* incoming data has HTTP header */
+   BIT(content_range); /* set TRUE if Content-Range: was found */
+   BIT(upload_done);   /* set to TRUE when doing chunked transfer-encoding
+--- a/tests/data/Makefile.inc
++++ b/tests/data/Makefile.inc
+@@ -66,7 +66,7 @@ test370 test371 \
+ test392 test393 test394 test395 test396 test397 \
+ \
+ test400 test401 test402 test403 test404 test405 test406 test407 test408 \
+-test409 test410 \
++test409 test410 test418 \
+ \
+ test430 test431 test432 test433 test434 test435 test446 \
+ \
+--- /dev/null
++++ b/tests/data/test418
+@@ -0,0 +1,152 @@
++<testcase>
++<info>
++<keywords>
++HTTP
++gzip
++</keywords>
++</info>
++
++#
++# Server-side
++<reply>
++<data nocheck="yes">
++HTTP/1.1 200 OK
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++Transfer-Encoding: gzip
++
++-foo-
++</data>
++</reply>
++
++#
++# Client-side
++<client>
++<server>
++http
++</server>
++ <name>
++Response with multiple Transfer-Encoding headers
++ </name>
++ <command>
++http://%HOSTIP:%HTTPPORT/%TESTNUMBER -sS
++</command>
++</client>
++
++#
++# Verify data after the test has been "shot"
++<verify>
++<protocol crlf="yes">
++GET /%TESTNUMBER HTTP/1.1
++Host: %HOSTIP:%HTTPPORT
++User-Agent: curl/%VERSION
++Accept: */*
++
++</protocol>
++
++# CURLE_BAD_CONTENT_ENCODING is 61
++<errorcode>
++61
++</errorcode>
++<stderr mode="text">
++curl: (61) Reject response due to more than 5 content encodings
++</stderr>
++</verify>
++</testcase>
diff --git a/meta/recipes-support/curl/curl_7.82.0.bb b/meta/recipes-support/curl/curl_7.82.0.bb
index b583060889..945745cdde 100644
--- a/meta/recipes-support/curl/curl_7.82.0.bb
+++ b/meta/recipes-support/curl/curl_7.82.0.bb
@@ -39,6 +39,7 @@ SRC_URI = "https://curl.se/download/${BP}.tar.xz \
            file://CVE-2023-23914_5-3.patch \
            file://CVE-2023-23914_5-4.patch \
            file://CVE-2023-23914_5-5.patch \
+           file://CVE-2023-23916.patch \
            "
 SRC_URI[sha256sum] = "0aaa12d7bd04b0966254f2703ce80dd5c38dbbd76af0297d3d690cdce58a583c"
 
-- 
2.38.1