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-rw-r--r--debian/patches/scp-disallow-dot-or-empty-filename.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/debian/patches/scp-disallow-dot-or-empty-filename.patch b/debian/patches/scp-disallow-dot-or-empty-filename.patch
new file mode 100644
index 000000000..716f2ffa8
--- /dev/null
+++ b/debian/patches/scp-disallow-dot-or-empty-filename.patch
@@ -0,0 +1,32 @@
1From dee21e97428e69d30e2d15c71f3e7cc08bf8e4f8 Mon Sep 17 00:00:00 2001
2From: "djm@openbsd.org" <djm@openbsd.org>
3Date: Fri, 16 Nov 2018 03:03:10 +0000
4Subject: upstream: disallow empty incoming filename or ones that refer to the
5
6current directory; based on report/patch from Harry Sintonen
7
8OpenBSD-Commit-ID: f27651b30eaee2df49540ab68d030865c04f6de9
9
10Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=6010c0303a422a9c5fa8860c061bf7105eb7f8b2
11Bug-Debian: https://bugs.debian.org/919101
12Last-Update: 2019-01-12
13
14Patch-Name: scp-disallow-dot-or-empty-filename.patch
15---
16 scp.c | 3 ++-
17 1 file changed, 2 insertions(+), 1 deletion(-)
18
19diff --git a/scp.c b/scp.c
20index ed2864250..7163d33dc 100644
21--- a/scp.c
22+++ b/scp.c
23@@ -1114,7 +1114,8 @@ sink(int argc, char **argv)
24 SCREWUP("size out of range");
25 size = (off_t)ull;
26
27- if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) {
28+ if (*cp == '\0' || strchr(cp, '/') != NULL ||
29+ strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
30 run_err("error: unexpected filename: %s", cp);
31 exit(1);
32 }