gnu: mcrypt: Fix CVE-2012-4409, CVE-2012-4426, CVE-2012-4527.

* gnu/packages/mcrypt.scm (mcrypt)[source]: Add patches.
* gnu/packages/patches/mcrypt-CVE-2012-4409.patch,
gnu/packages/patches/mcrypt-CVE-2012-4426.patch,
gnu/packages/patches/mcrypt-CVE-2012-4527.patch: New variables.
* gnu/local.mk (dist_patch_DATA): Add them.

4 files changed, 186 insertions, 1 deletions

diff --git a/gnu/packages/mcrypt.scm b/gnu/packages/mcrypt.scm
index a683ad7ac9..7ac0b92d81 100644
--- a/gnu/packages/mcrypt.scm
+++ b/gnu/packages/mcrypt.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
+;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -36,7 +37,11 @@
                           version ".tar.gz"))
       (sha256
        (base32
-        "161031n1w9pb4yzz9i47szc12a4mwpcpvyxnvafsik2l9s2aliai"))))
+        "161031n1w9pb4yzz9i47szc12a4mwpcpvyxnvafsik2l9s2aliai"))
+      (patches (search-patches
+                 "mcrypt-CVE-2012-4409.patch"
+                 "mcrypt-CVE-2012-4426.patch"
+                 "mcrypt-CVE-2012-4527.patch"))))
     (build-system gnu-build-system)
     (inputs
      `(("zlib" ,zlib)
diff --git a/gnu/packages/patches/mcrypt-CVE-2012-4409.patch b/gnu/packages/patches/mcrypt-CVE-2012-4409.patch
new file mode 100644
index 0000000000..60cf8e0430
--- /dev/null
+++ b/gnu/packages/patches/mcrypt-CVE-2012-4409.patch
@@ -0,0 +1,33 @@
+From 4876e3a692739bb9ca00d0f500fd5f4b3eb16ce3 Mon Sep 17 00:00:00 2001
+From: Tom Callaway <spot@fedoraproject.org>
+Date: Fri, 7 Sep 2012 11:39:29 -0400
+Subject: apply fix for CVE-2012-4409 (thanks to Raphael Geissert)
+
+---
+ mcrypt-CVE-2012-4409.patch | 12 ++++++++++++
+ mcrypt.spec                | 10 +++++++++-
+ 2 files changed, 21 insertions(+), 1 deletion(-)
+ create mode 100644 mcrypt-CVE-2012-4409.patch
+
+diff --git a/mcrypt-CVE-2012-4409.patch b/mcrypt-CVE-2012-4409.patch
+new file mode 100644
+index 0000000..747f428
+--- /dev/null
++++ b/mcrypt-CVE-2012-4409.patch
+@@ -0,0 +1,12 @@
++diff -up mcrypt-2.6.8/src/extra.c.CVE-2012-4409 mcrypt-2.6.8/src/extra.c
++--- mcrypt-2.6.8/src/extra.c.CVE-2012-4409	2012-09-07 11:00:55.906870746 -0400
+++++ mcrypt-2.6.8/src/extra.c	2012-09-07 11:00:27.967858365 -0400
++@@ -242,6 +242,8 @@ int check_file_head(FILE * fstream, char
++ 			if (m_getbit(0, sflag) != 0) { /* if the first bit is set */
++ 				*salt_size = m_setbit(0, sflag, 0);
++ 				if (*salt_size > 0) {
+++					if (*salt_size > sizeof(tmp_buf))
+++						err_quit(_("Salt is too long\n"));
++ 					fread(tmp_buf, 1, *salt_size,
++ 					      fstream);
++ 					memmove(salt, tmp_buf, *salt_size);
+ 
+-- 
+cgit v0.12
+
diff --git a/gnu/packages/patches/mcrypt-CVE-2012-4426.patch b/gnu/packages/patches/mcrypt-CVE-2012-4426.patch
new file mode 100644
index 0000000000..61c197b0c9
--- /dev/null
+++ b/gnu/packages/patches/mcrypt-CVE-2012-4426.patch
@@ -0,0 +1,36 @@
+diff --git a/mcrypt-CVE-2012-4426.patch b/mcrypt-CVE-2012-4426.patch
+new file mode 100644
+index 0000000..747f428
+--- mcrypt-2.6.8/src/errors.c
++++ mcrypt-2.6.8/src/errors.c
+@@ -25,24 +25,24 @@
+ 
+ void err_quit(char *errmsg)
+ {
+-	fprintf(stderr, errmsg);
++	fprintf(stderr, "%s", errmsg);
+ 	exit(-1);
+ }
+ 
+ void err_warn(char *errmsg)
+ {
+ 	if (quiet <= 1)
+-		fprintf(stderr, errmsg);
++		fprintf(stderr, "%s", errmsg);
+ }
+ 
+ void err_info(char *errmsg)
+ {
+ 	if (quiet == 0)
+-		fprintf(stderr, errmsg);
++		fprintf(stderr, "%s", errmsg);
+ }
+ 
+ void err_crit(char *errmsg)
+ {
+ 	if (quiet <= 2)
+-		fprintf(stderr, errmsg);
++		fprintf(stderr, "%s", errmsg);
+ }
+
+---
diff --git a/gnu/packages/patches/mcrypt-CVE-2012-4527.patch b/gnu/packages/patches/mcrypt-CVE-2012-4527.patch
new file mode 100644
index 0000000000..d931dd174b
--- /dev/null
+++ b/gnu/packages/patches/mcrypt-CVE-2012-4527.patch
@@ -0,0 +1,111 @@
+From b0716eac4e800a0ea53e1b949250f671702f28a0 Mon Sep 17 00:00:00 2001
+From: Tom Callaway <spot@fedoraproject.org>
+Date: Tue, 30 Oct 2012 15:39:24 -0400
+Subject: apply workaround to CVE-2012-4527
+
+---
+ mcrypt-CVE-2012-4527-80-width-patch | 91 +++++++++++++++++++++++++++++++++++++
+ mcrypt.spec                         | 10 +++-
+ 2 files changed, 100 insertions(+), 1 deletion(-)
+ create mode 100644 mcrypt-CVE-2012-4527-80-width-patch
+
+diff --git a/mcrypt-CVE-2012-4527-80-width-patch b/mcrypt-CVE-2012-4527-80-width-patch
+new file mode 100644
+index 0000000..0eb94d8
+--- /dev/null
++++ b/mcrypt-CVE-2012-4527-80-width-patch
+@@ -0,0 +1,91 @@
++--- mcrypt-2.6.8.orig/src/mcrypt.c
+++++ mcrypt-2.6.8/src/mcrypt.c
++@@ -41,6 +41,8 @@
++ # include <time.h>
++ #endif
++ 
+++#define WIDTH 80
+++
++ static char rcsid[] =
++     "$Id: mcrypt.c,v 1.2 2007/11/07 17:10:21 nmav Exp $";
++ 
++@@ -482,7 +484,7 @@
++ #ifdef HAVE_STAT
++       if (stream_flag == FALSE) {
++ 	 if (is_normal_file(file[i]) == FALSE) {
++-	    sprintf(tmperr,
+++	    snprintf(tmperr, WIDTH,
++ 		    _
++ 		    ("%s: %s is not a regular file. Skipping...\n"),
++ 		    program_name, file[i]);
++@@ -501,7 +503,7 @@
++ 	    dinfile = file[i];
++ 	 if ((isatty(fileno((FILE *) (stdin))) == 1)
++ 	     && (stream_flag == TRUE) && (force == 0)) {	/* not a tty */
++-	    sprintf(tmperr,
+++	    snprintf(tmperr, WIDTH,
++ 		    _
++ 		    ("%s: Encrypted data will not be read from a terminal.\n"),
++ 		    program_name);
++@@ -520,7 +522,7 @@
++ 	    einfile = file[i];
++ 	 if ((isatty(fileno((FILE *) (stdout))) == 1)
++ 	     && (stream_flag == TRUE) && (force == 0)) {	/* not a tty */
++-	    sprintf(tmperr,
+++	    snprintf(tmperr, WIDTH,
++ 		    _
++ 		    ("%s: Encrypted data will not be written to a terminal.\n"),
++ 		    program_name);
++@@ -544,7 +546,7 @@
++ 	    strcpy(outfile, einfile);
++ 	    /* if file has already the .nc ignore it */
++ 	    if (strstr(outfile, ".nc") != NULL) {
++-	       sprintf(tmperr,
+++	       snprintf(tmperr, WIDTH,
++ 		       _
++ 		       ("%s: file %s has the .nc suffix... skipping...\n"),
++ 		       program_name, outfile);
++@@ -590,10 +592,10 @@
++ 
++ 	 if (x == 0) {
++ 	    if (stream_flag == FALSE) {
++-	       sprintf(tmperr, _("File %s was decrypted.\n"), dinfile);
+++	       snprintf(tmperr, WIDTH, _("File %s was decrypted.\n"), dinfile);
++ 	       err_warn(tmperr);
++ 	    } else {
++-	       sprintf(tmperr, _("Stdin was decrypted.\n"));
+++	       snprintf(tmperr, WIDTH, _("Stdin was decrypted.\n"));
++ 	       err_warn(tmperr);
++ 	    }
++ #ifdef HAVE_STAT
++@@ -610,7 +612,7 @@
++ 
++ 	 } else {
++ 	    if (stream_flag == FALSE) {
++-	       sprintf(tmperr,
+++	       snprintf(tmperr, WIDTH,
++ 		       _
++ 		       ("File %s was NOT decrypted successfully.\n"),
++ 		       dinfile);
++@@ -636,10 +638,10 @@
++ 
++ 	 if (x == 0) {
++ 	    if (stream_flag == FALSE) {
++-	       sprintf(tmperr, _("File %s was encrypted.\n"), einfile);
+++	       snprintf(tmperr, WIDTH, _("File %s was encrypted.\n"), einfile);
++ 	       err_warn(tmperr);
++ 	    } else {
++-	       sprintf(tmperr, _("Stdin was encrypted.\n"));
+++	       snprintf(tmperr, WIDTH, _("Stdin was encrypted.\n"));
++ 	       err_warn(tmperr);
++ 	    }
++ #ifdef HAVE_STAT
++@@ -655,7 +657,7 @@
++ 
++ 	 } else {
++ 	    if (stream_flag == FALSE) {
++-	       sprintf(tmperr,
+++	       snprintf(tmperr, WIDTH,
++ 		       _
++ 		       ("File %s was NOT encrypted successfully.\n"),
++ 		       einfile);
+-- 
+cgit v0.12
+