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authorChangqing Li <changqing.li@windriver.com>2018-08-28 17:39:23 +0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2018-08-29 10:40:08 +0100
commit2539d7334cbe9693ebe68d33c7a97872a1645510 (patch)
treea1f45974ff158d4341eca99bc26b473518988a75 /meta/recipes-support/libcroco
parent8aa8bc77ef311b1c9dffcd2e2c0da610697b89fd (diff)
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libcroco: patch for CVE-2017-7960
Signed-off-by: Changqing Li <changqing.li@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-support/libcroco')
-rw-r--r--meta/recipes-support/libcroco/libcroco/CVE-2017-7960.patch56
-rw-r--r--meta/recipes-support/libcroco/libcroco_0.6.12.bb2
2 files changed, 58 insertions, 0 deletions
diff --git a/meta/recipes-support/libcroco/libcroco/CVE-2017-7960.patch b/meta/recipes-support/libcroco/libcroco/CVE-2017-7960.patch
new file mode 100644
index 0000000000..f6f43c3d26
--- /dev/null
+++ b/meta/recipes-support/libcroco/libcroco/CVE-2017-7960.patch
@@ -0,0 +1,56 @@
+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.
+
+Upstream-Status: Backport[https://gitlab.gnome.org/GNOME/libcroco/
+ commit/898e3a8c8c0314d2e6b106809a8e3e93cf9d4394]
+
+CVE: CVE-2017-7960
+
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
+
+diff --git a/src/cr-input.c b/src/cr-input.c
+index 49000b1f5f07fe057135f1b8fc69bdcf9613e300..3b63a88ee3b1c56778e58172d147d958951bf099 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;
diff --git a/meta/recipes-support/libcroco/libcroco_0.6.12.bb b/meta/recipes-support/libcroco/libcroco_0.6.12.bb
index d86ddd6464..5b962ee738 100644
--- a/meta/recipes-support/libcroco/libcroco_0.6.12.bb
+++ b/meta/recipes-support/libcroco/libcroco_0.6.12.bb
@@ -16,5 +16,7 @@ BINCONFIG = "${bindir}/croco-0.6-config"
inherit gnomebase gtk-doc binconfig-disabled
+SRC_URI += "file://CVE-2017-7960.patch"
+
SRC_URI[archive.md5sum] = "bc0984fce078ba2ce29f9500c6b9ddce"
SRC_URI[archive.sha256sum] = "ddc4b5546c9fb4280a5017e2707fbd4839034ed1aba5b7d4372212f34f84f860"