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libcroco: Fix CVE-2017-{7960,7961}.

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* gnu/packages/gnome.scm (libcroco)[replacement]: New field.
(libcroco/fixed): New variable.
* gnu/packages/patches/libcroco-CVE-2017-7960.patch,
gnu/packages/patches/libcroco-CVE-2017-7961.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
This commit is contained in:
Leo Famulari 2017-04-24 01:03:34 -04:00
parent 638787307e
commit 43acfcb2c7
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GPG key ID: 2646FA30BACA7F08
4 changed files with 132 additions and 0 deletions
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2
gnu/local.mk
View file

@ -691,6 +691,8 @@ dist_patch_DATA = \
%D%/packages/patches/libbase-use-own-logging.patch \
%D%/packages/patches/libbonobo-activation-test-race.patch \
%D%/packages/patches/libcanberra-sound-theme-freedesktop.patch \
%D%/packages/patches/libcroco-CVE-2017-7960.patch \
%D%/packages/patches/libcroco-CVE-2017-7961.patch \
%D%/packages/patches/libdrm-symbol-check.patch \
%D%/packages/patches/libetonyek-build-with-mdds-1.2.patch \
%D%/packages/patches/libevent-dns-tests.patch \

14
gnu/packages/gnome.scm
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@ -945,6 +945,7 @@ (define-public glade3
(define-public libcroco
(package
(name "libcroco")
(replacement libcroco/fixed)
(version "0.6.11")
(source (origin
(method url-fetch)
@ -972,6 +973,19 @@ (define-public libcroco
;; LGPLv2.1-only.
(license license:lgpl2.1)))
(define libcroco/fixed
(package
(inherit libcroco)
(replacement #f)
(source
(origin
(inherit (package-source libcroco))
(patches
(append
(origin-patches (package-source libcroco))
(search-patches "libcroco-CVE-2017-7960.patch"
"libcroco-CVE-2017-7961.patch")))))))
(define-public libgsf
(package
(name "libgsf")

66
gnu/packages/patches/libcroco-CVE-2017-7960.patch Normal file
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@ -0,0 +1,66 @@
Fix CVE-2017-7960:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7960
Patch copied from upstream source repository:
https://git.gnome.org/browse/libcroco/commit/?id=898e3a8c8c0314d2e6b106809a8e3e93cf9d4394
From 898e3a8c8c0314d2e6b106809a8e3e93cf9d4394 Mon Sep 17 00:00:00 2001
From: Ignacio Casal Quinteiro <qignacio@amazon.com>
Date: Sun, 16 Apr 2017 13:13:43 +0200
Subject: input: check end of input before reading a byte
When reading bytes we weren't check that the index wasn't
out of bound and this could produce an invalid read which
could deal to a security bug.
---
src/cr-input.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/src/cr-input.c b/src/cr-input.c
index 49000b1..3b63a88 100644
--- a/src/cr-input.c
+++ b/src/cr-input.c
@@ -256,7 +256,7 @@ cr_input_new_from_uri (const gchar * a_file_uri, enum CREncoding a_enc)
*we should free buf here because it's own by CRInput.
*(see the last parameter of cr_input_new_from_buf().
*/
- buf = NULL ;
+ buf = NULL;
}
cleanup:
@@ -404,6 +404,8 @@ cr_input_get_nb_bytes_left (CRInput const * a_this)
enum CRStatus
cr_input_read_byte (CRInput * a_this, guchar * a_byte)
{
+ gulong nb_bytes_left = 0;
+
g_return_val_if_fail (a_this && PRIVATE (a_this)
&& a_byte, CR_BAD_PARAM_ERROR);
@@ -413,6 +415,12 @@ cr_input_read_byte (CRInput * a_this, guchar * a_byte)
if (PRIVATE (a_this)->end_of_input == TRUE)
return CR_END_OF_INPUT_ERROR;
+ nb_bytes_left = cr_input_get_nb_bytes_left (a_this);
+
+ if (nb_bytes_left < 1) {
+ return CR_END_OF_INPUT_ERROR;
+ }
+
*a_byte = PRIVATE (a_this)->in_buf[PRIVATE (a_this)->next_byte_index];
if (PRIVATE (a_this)->nb_bytes -
@@ -477,7 +485,6 @@ cr_input_read_char (CRInput * a_this, guint32 * a_char)
if (*a_char == '\n') {
PRIVATE (a_this)->end_of_line = TRUE;
}
-
}
return status;
--
cgit v0.12

50
gnu/packages/patches/libcroco-CVE-2017-7961.patch Normal file
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@ -0,0 +1,50 @@
Fix CVE-2017-7961:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7961
Patch copied from upstream source repository:
https://git.gnome.org/browse/libcroco/commit/?id=9ad72875e9f08e4c519ef63d44cdbd94aa9504f7
From 9ad72875e9f08e4c519ef63d44cdbd94aa9504f7 Mon Sep 17 00:00:00 2001
From: Ignacio Casal Quinteiro <qignacio@amazon.com>
Date: Sun, 16 Apr 2017 13:56:09 +0200
Subject: tknzr: support only max long rgb values
This fixes a possible out of bound when reading rgbs which
are longer than the support MAXLONG
---
src/cr-tknzr.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/src/cr-tknzr.c b/src/cr-tknzr.c
index 1a7cfeb..1548c35 100644
--- a/src/cr-tknzr.c
+++ b/src/cr-tknzr.c
@@ -1279,6 +1279,11 @@ cr_tknzr_parse_rgb (CRTknzr * a_this, CRRgb ** a_rgb)
status = cr_tknzr_parse_num (a_this, &num);
ENSURE_PARSING_COND ((status == CR_OK) && (num != NULL));
+ if (num->val > G_MAXLONG) {
+ status = CR_PARSING_ERROR;
+ goto error;
+ }
+
red = num->val;
cr_num_destroy (num);
num = NULL;
@@ -1298,6 +1303,11 @@ cr_tknzr_parse_rgb (CRTknzr * a_this, CRRgb ** a_rgb)
status = cr_tknzr_parse_num (a_this, &num);
ENSURE_PARSING_COND ((status == CR_OK) && (num != NULL));
+ if (num->val > G_MAXLONG) {
+ status = CR_PARSING_ERROR;
+ goto error;
+ }
+
PEEK_BYTE (a_this, 1, &next_bytes[0]);
if (next_bytes[0] == '%') {
SKIP_CHARS (a_this, 1);
--
cgit v0.12