* CVE-2017-7961 The cr_tknzr_parse_rgb function in cr-tknzr.c in libcroco has an "outside the range of representable values of type long" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted CSS file.
CVE: CVE-2017-7961 Ref: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-7961 Signed-off-by: Sinan Kaya <ok...@kernel.org> --- .../libcroco/libcroco/CVE-2017-7961.patch | 46 +++++++++++++++++++ .../libcroco/libcroco_0.6.12.bb | 2 + 2 files changed, 48 insertions(+) create mode 100644 meta/recipes-support/libcroco/libcroco/CVE-2017-7961.patch diff --git a/meta/recipes-support/libcroco/libcroco/CVE-2017-7961.patch b/meta/recipes-support/libcroco/libcroco/CVE-2017-7961.patch new file mode 100644 index 0000000000..8ac11ec498 --- /dev/null +++ b/meta/recipes-support/libcroco/libcroco/CVE-2017-7961.patch @@ -0,0 +1,46 @@ +From 5fa3165613b77b516e2b0dc128f73b673bd3ec8b Mon Sep 17 00:00:00 2001 +From: Ignacio Casal Quinteiro <qigna...@amazon.com> +Date: Sun, 16 Apr 2017 13:56:09 +0200 +Subject: [PATCH] tknzr: support only max long rgb values + +This fixes a possible out of bound when reading rgbs which +are longer than the support MAXLONG + +Upstream-Status: Backport [https://git.gnome.org/browse/libcroco/patch/?id=9ad72875e9f08e4c519ef63d44cdbd94aa9504f7] +CVE: CVE-2017-7961 +Signed-off-by: Sinan Kaya <ok...@kernel.org> +--- + src/cr-tknzr.c | 10 ++++++++++ + 1 file changed, 10 insertions(+) + +diff --git a/src/cr-tknzr.c b/src/cr-tknzr.c +index e3af0ee..76886ec 100644 +--- a/src/cr-tknzr.c ++++ b/src/cr-tknzr.c +@@ -1280,6 +1280,11 @@ 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; +@@ -1299,6 +1304,11 @@ 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); +-- +2.19.0 + diff --git a/meta/recipes-support/libcroco/libcroco_0.6.12.bb b/meta/recipes-support/libcroco/libcroco_0.6.12.bb index d86ddd6464..dd7dad424c 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-2017-7961.patch" + SRC_URI[archive.md5sum] = "bc0984fce078ba2ce29f9500c6b9ddce" SRC_URI[archive.sha256sum] = "ddc4b5546c9fb4280a5017e2707fbd4839034ed1aba5b7d4372212f34f84f860" -- 2.19.0 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core