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authorLeo Famulari <leo@famulari.name>2019-01-15 08:52:52 -0500
committerLeo Famulari <leo@famulari.name>2019-01-17 14:02:04 -0500
commit2b65a9e6d18c661f5bb6b3e557973c52b3294e87 (patch)
tree2a9105013dd1ba11da22dec4e5db1b8cd4af0a9c /gnu
parent65cd70ce42d4a46a65f284cbd1386e3e169383e4 (diff)
downloadgnu-guix-2b65a9e6d18c661f5bb6b3e557973c52b3294e87.tar
gnu-guix-2b65a9e6d18c661f5bb6b3e557973c52b3294e87.tar.gz
gnu: OpenSSH: Fix CVE-2018-20685.
* gnu/packages/patches/openssh-CVE-2018-20685.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/ssh.scm (openssh)[source]: Use it.
Diffstat (limited to 'gnu')
-rw-r--r--gnu/local.mk1
-rw-r--r--gnu/packages/patches/openssh-CVE-2018-20685.patch44
-rw-r--r--gnu/packages/ssh.scm1
3 files changed, 46 insertions, 0 deletions
diff --git a/gnu/local.mk b/gnu/local.mk
index 1619e34404..99ebdaad4a 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1088,6 +1088,7 @@ dist_patch_DATA = \
%D%/packages/patches/openldap-CVE-2017-9287.patch \
%D%/packages/patches/openocd-nrf52.patch \
%D%/packages/patches/opensmtpd-fix-crash.patch \
+ %D%/packages/patches/openssh-CVE-2018-20685.patch \
%D%/packages/patches/openssl-runpath.patch \
%D%/packages/patches/openssl-1.1-c-rehash-in.patch \
%D%/packages/patches/openssl-c-rehash-in.patch \
diff --git a/gnu/packages/patches/openssh-CVE-2018-20685.patch b/gnu/packages/patches/openssh-CVE-2018-20685.patch
new file mode 100644
index 0000000000..463c08a9d4
--- /dev/null
+++ b/gnu/packages/patches/openssh-CVE-2018-20685.patch
@@ -0,0 +1,44 @@
+Fix CVE-2018-20685:
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20685
+
+Patch copied from upstream source repository:
+
+https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2
+
+From 6010c0303a422a9c5fa8860c061bf7105eb7f8b2 Mon Sep 17 00:00:00 2001
+From: "djm@openbsd.org" <djm@openbsd.org>
+Date: Fri, 16 Nov 2018 03:03:10 +0000
+Subject: [PATCH] upstream: disallow empty incoming filename or ones that refer
+ to the
+
+current directory; based on report/patch from Harry Sintonen
+
+OpenBSD-Commit-ID: f27651b30eaee2df49540ab68d030865c04f6de9
+---
+ scp.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/scp.c b/scp.c
+index 60682c68..4f3fdcd3 100644
+--- a/scp.c
++++ b/scp.c
+#@@ -1,4 +1,4 @@
+#-/* $OpenBSD: scp.c,v 1.197 2018/06/01 04:31:48 dtucker Exp $ */
+#+/* $OpenBSD: scp.c,v 1.198 2018/11/16 03:03:10 djm Exp $ */
+# /*
+# * scp - secure remote copy. This is basically patched BSD rcp which
+# * uses ssh to do the data transfer (instead of using rcmd).
+@@ -1106,7 +1106,8 @@ sink(int argc, char **argv)
+ SCREWUP("size out of range");
+ size = (off_t)ull;
+
+- 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);
+ }
+--
+2.20.1
+
diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm
index 88230c5054..78659fbbf4 100644
--- a/gnu/packages/ssh.scm
+++ b/gnu/packages/ssh.scm
@@ -149,6 +149,7 @@ a server that supports the SSH-2 protocol.")
(method url-fetch)
(uri (string-append "mirror://openbsd/OpenSSH/portable/"
name "-" version ".tar.gz"))
+ (patches (search-patches "openssh-CVE-2018-20685.patch"))
(sha256
(base32
"1b8sy6v0b8v4ggmknwcqx3y1rjcpsll0f1f8f4vyv11x4ni3njvb"))))