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authorLeo Famulari <leo@famulari.name>2017-06-19 18:34:57 -0400
committerLeo Famulari <leo@famulari.name>2017-06-19 20:20:54 -0400
commit4dd8d280857607d1ee41ae03c62c5e629ad75c37 (patch)
tree33d699dd7cdbe25d27953b4d1992db87cb82aa30
parente037e9dbec1ab5a8cfaf65d73aa3afb2eeb98d71 (diff)
downloadgnu-guix-4dd8d280857607d1ee41ae03c62c5e629ad75c37.tar
gnu-guix-4dd8d280857607d1ee41ae03c62c5e629ad75c37.tar.gz
gnu: exim: Fix CVE-2017-1000369.
* gnu/packages/patches/exim-CVE-2017-1000369.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/mail.scm (exim)[source]: Use it.
-rw-r--r--gnu/local.mk1
-rw-r--r--gnu/packages/mail.scm1
-rw-r--r--gnu/packages/patches/exim-CVE-2017-1000369.patch59
3 files changed, 61 insertions, 0 deletions
diff --git a/gnu/local.mk b/gnu/local.mk
index 8c9883a5e2..ae4a59af0b 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -575,6 +575,7 @@ dist_patch_DATA = \
%D%/packages/patches/eudev-conflicting-declaration.patch \
%D%/packages/patches/evilwm-lost-focus-bug.patch \
%D%/packages/patches/expat-CVE-2016-0718-fix-regression.patch \
+ %D%/packages/patches/exim-CVE-2017-1000369.patch \
%D%/packages/patches/fabric-tests.patch \
%D%/packages/patches/fastcap-mulGlobal.patch \
%D%/packages/patches/fastcap-mulSetup.patch \
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index f4003d7391..7fde203593 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -1004,6 +1004,7 @@ delivery.")
version ".tar.bz2")
(string-append "ftp://ftp.exim.org/pub/exim/exim4/old/exim-"
version ".tar.bz2")))
+ (patches (search-patches "exim-CVE-2017-1000369.patch"))
(sha256
(base32
"050m2gjzpc6vyik458h1j0vi8bxplkzjsyndkyd2y394i569kdyl"))))
diff --git a/gnu/packages/patches/exim-CVE-2017-1000369.patch b/gnu/packages/patches/exim-CVE-2017-1000369.patch
new file mode 100644
index 0000000000..a67a8afb0e
--- /dev/null
+++ b/gnu/packages/patches/exim-CVE-2017-1000369.patch
@@ -0,0 +1,59 @@
+Fix CVE-2017-1000369:
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000369
+https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
+
+Patch adapted from upstream source repository:
+
+https://git.exim.org/exim.git/commit/65e061b76867a9ea7aeeb535341b790b90ae6c21
+
+From 65e061b76867a9ea7aeeb535341b790b90ae6c21 Mon Sep 17 00:00:00 2001
+From: "Heiko Schlittermann (HS12-RIPE)" <hs@schlittermann.de>
+Date: Wed, 31 May 2017 23:08:56 +0200
+Subject: [PATCH] Cleanup (prevent repeated use of -p/-oMr to avoid mem leak)
+
+---
+ doc/doc-docbook/spec.xfpt | 3 ++-
+ src/src/exim.c | 19 +++++++++++++++++--
+ 2 files changed, 19 insertions(+), 3 deletions(-)
+
+diff --git a/src/src/exim.c b/src/src/exim.c
+index 67583e58..88e11977 100644
+--- a/src/exim.c
++++ b/src/exim.c
+@@ -3106,7 +3106,14 @@ for (i = 1; i < argc; i++)
+
+ /* -oMr: Received protocol */
+
+- else if (Ustrcmp(argrest, "Mr") == 0) received_protocol = argv[++i];
++ else if (Ustrcmp(argrest, "Mr") == 0)
++
++ if (received_protocol)
++ {
++ fprintf(stderr, "received_protocol is set already\n");
++ exit(EXIT_FAILURE);
++ }
++ else received_protocol = argv[++i];
+
+ /* -oMs: Set sender host name */
+
+@@ -3202,7 +3209,15 @@ for (i = 1; i < argc; i++)
+
+ if (*argrest != 0)
+ {
+- uschar *hn = Ustrchr(argrest, ':');
++ uschar *hn;
++
++ if (received_protocol)
++ {
++ fprintf(stderr, "received_protocol is set already\n");
++ exit(EXIT_FAILURE);
++ }
++
++ hn = Ustrchr(argrest, ':');
+ if (hn == NULL)
+ {
+ received_protocol = argrest;
+--
+2.13.1
+