1 files changed, 39 insertions, 0 deletions

diff --git a/meta/recipes-support/curl/curl/CVE-2022-27775.patch b/meta/recipes-support/curl/curl/CVE-2022-27775.patch
new file mode 100644
index 0000000000..b3fe7b4494
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2022-27775.patch
@@ -0,0 +1,39 @@
+From 058f98dc3fe595f21dc26a5b9b1699e519ba5705 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Mon, 25 Apr 2022 11:48:00 +0200
+Subject: [PATCH] conncache: include the zone id in the "bundle" hashkey
+
+Make connections to two separate IPv6 zone ids create separate
+connections.
+
+Reported-by: Harry Sintonen
+Bug: https://curl.se/docs/CVE-2022-27775.html
+Closes #8747
+---
+ lib/conncache.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+CVE: CVE-2022-27775
+Upstream-Status: Backport [https://github.com/curl/curl/commit/058f98dc3fe595f21dc26a5b9b1699e519ba5705.patch]
+Comment: Refreshed patch
+Signed-off-by: Sana.Kazi <Sana.Kazi@kpit.com>
+
+diff --git a/lib/conncache.c b/lib/conncache.c
+index ec669b971dc3..8948b53fa500 100644
+--- a/lib/conncache.c
++++ b/lib/conncache.c
+@@ -156,8 +156,12 @@
+     /* report back which name we used */
+     *hostp = hostname;
+ 
+-  /* put the number first so that the hostname gets cut off if too long */
+-  msnprintf(buf, len, "%ld%s", port, hostname);
++  /* put the numbers first so that the hostname gets cut off if too long */
++#ifdef ENABLE_IPV6
++  msnprintf(buf, len, "%u/%ld/%s", conn->scope_id, port, hostname);
++#else
++  msnprintf(buf, len, "%ld/%s", port, hostname);
++#endif
+ }
+ 
+ /* Returns number of connections currently held in the connection cache.