mirror of
git://git.savannah.gnu.org/guix.git
synced 2023-12-14 03:33:07 +01:00
43acfcb2c7
* 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.
66 lines
2.1 KiB
Diff
66 lines
2.1 KiB
Diff
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
|
|
|