1 files changed, 29 insertions, 0 deletions

diff --git a/meta/recipes-core/dropbear/dropbear/CVE-2020-36254.patch b/meta/recipes-core/dropbear/dropbear/CVE-2020-36254.patch
new file mode 100644
index 0000000000..64d0d96486
--- /dev/null
+++ b/meta/recipes-core/dropbear/dropbear/CVE-2020-36254.patch
@@ -0,0 +1,29 @@
+From c96c48d62aefc372f2105293ddf8cff2d116dc3a Mon Sep 17 00:00:00 2001
+From: Haelwenn Monnier <contact+github.com@hacktivis.me>
+Date: Mon, 25 May 2020 14:54:29 +0200
+Subject: [PATCH] scp.c: Port OpenSSH CVE-2018-20685 fix (#80)
+
+Reference:
+https://github.com/mkj/dropbear/commit/8f8a3dff705fad774a10864a2e3dbcfa9779ceff
+
+CVE: CVE-2020-36254
+Upstream-Status: Backport
+
+---
+ scp.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/scp.c b/scp.c
+index 742ae00..7b8e7d2 100644
+--- a/scp.c
++++ b/scp.c
+@@ -935,7 +935,8 @@ sink(int argc, char **argv)
+                        size = size * 10 + (*cp++ - '0');
+                if (*cp++ != ' ')
+                        SCREWUP("size not delimited");
+-               if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) {
++               if (*cp == '\0' || strchr(cp, '/') != NULL ||
++                   strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
+                        run_err("error: unexpected filename: %s", cp);
+                        exit(1);
+                }