diff --git a/SOURCES/CVE-2020-12825.patch b/SOURCES/CVE-2020-12825.patch
new file mode 100644
index 0000000..835ad7d
--- /dev/null
+++ b/SOURCES/CVE-2020-12825.patch
@@ -0,0 +1,184 @@
+From 6eb257e5c731c691eb137fca94e916ca73941a5a Mon Sep 17 00:00:00 2001
+From: Michael Catanzaro <mcatanzaro@gnome.org>
+Date: Fri, 31 Jul 2020 15:21:53 -0500
+Subject: [PATCH] parser: limit recursion in block and any productions
+
+If we don't have any limits, we can recurse forever and overflow the
+stack.
+
+Fixes #8
+---
+ src/cr-parser.c | 44 +++++++++++++++++++++++++++++---------------
+ 1 file changed, 29 insertions(+), 15 deletions(-)
+
+diff --git a/src/cr-parser.c b/src/cr-parser.c
+index 18c9a01..f4a62e3 100644
+--- a/src/cr-parser.c
++++ b/src/cr-parser.c
+@@ -136,6 +136,8 @@ struct _CRParserPriv {
+
+ #define CHARS_TAB_SIZE 12
+
++#define RECURSIVE_CALLERS_LIMIT 100
++
+ /**
+ * IS_NUM:
+ *@a_char: the char to test.
+@@ -344,9 +346,11 @@ static enum CRStatus cr_parser_parse_selector_core (CRParser * a_this);
+
+ static enum CRStatus cr_parser_parse_declaration_core (CRParser * a_this);
+
+-static enum CRStatus cr_parser_parse_any_core (CRParser * a_this);
++static enum CRStatus cr_parser_parse_any_core (CRParser * a_this,
++ guint n_calls);
+
+-static enum CRStatus cr_parser_parse_block_core (CRParser * a_this);
++static enum CRStatus cr_parser_parse_block_core (CRParser * a_this,
++ guint n_calls);
+
+ static enum CRStatus cr_parser_parse_value_core (CRParser * a_this);
+
+@@ -784,7 +788,7 @@ cr_parser_parse_atrule_core (CRParser * a_this)
+ cr_parser_try_to_skip_spaces_and_comments (a_this);
+
+ do {
+- status = cr_parser_parse_any_core (a_this);
++ status = cr_parser_parse_any_core (a_this, 0);
+ } while (status == CR_OK);
+
+ status = cr_tknzr_get_next_token (PRIVATE (a_this)->tknzr,
+@@ -795,7 +799,7 @@ cr_parser_parse_atrule_core (CRParser * a_this)
+ cr_tknzr_unget_token (PRIVATE (a_this)->tknzr,
+ token);
+ token = NULL;
+- status = cr_parser_parse_block_core (a_this);
++ status = cr_parser_parse_block_core (a_this, 0);
+ CHECK_PARSING_STATUS (status,
+ FALSE);
+ goto done;
+@@ -930,11 +934,11 @@ cr_parser_parse_selector_core (CRParser * a_this)
+
+ RECORD_INITIAL_POS (a_this, &init_pos);
+
+- status = cr_parser_parse_any_core (a_this);
++ status = cr_parser_parse_any_core (a_this, 0);
+ CHECK_PARSING_STATUS (status, FALSE);
+
+ do {
+- status = cr_parser_parse_any_core (a_this);
++ status = cr_parser_parse_any_core (a_this, 0);
+
+ } while (status == CR_OK);
+
+@@ -956,10 +960,12 @@ cr_parser_parse_selector_core (CRParser * a_this)
+ *in chapter 4.1 of the css2 spec.
+ *block ::= '{' S* [ any | block | ATKEYWORD S* | ';' ]* '}' S*;
+ *@param a_this the current instance of #CRParser.
++ *@param n_calls used to limit recursion depth
+ *FIXME: code this function.
+ */
+ static enum CRStatus
+-cr_parser_parse_block_core (CRParser * a_this)
++cr_parser_parse_block_core (CRParser * a_this,
++ guint n_calls)
+ {
+ CRToken *token = NULL;
+ CRInputPos init_pos;
+@@ -967,6 +973,9 @@ cr_parser_parse_block_core (CRParser * a_this)
+
+ g_return_val_if_fail (a_this && PRIVATE (a_this), CR_BAD_PARAM_ERROR);
+
++ if (n_calls > RECURSIVE_CALLERS_LIMIT)
++ return CR_ERROR;
++
+ RECORD_INITIAL_POS (a_this, &init_pos);
+
+ status = cr_tknzr_get_next_token (PRIVATE (a_this)->tknzr, &token);
+@@ -996,13 +1005,13 @@ cr_parser_parse_block_core (CRParser * a_this)
+ } else if (token->type == CBO_TK) {
+ cr_tknzr_unget_token (PRIVATE (a_this)->tknzr, token);
+ token = NULL;
+- status = cr_parser_parse_block_core (a_this);
++ status = cr_parser_parse_block_core (a_this, n_calls + 1);
+ CHECK_PARSING_STATUS (status, FALSE);
+ goto parse_block_content;
+ } else {
+ cr_tknzr_unget_token (PRIVATE (a_this)->tknzr, token);
+ token = NULL;
+- status = cr_parser_parse_any_core (a_this);
++ status = cr_parser_parse_any_core (a_this, n_calls + 1);
+ CHECK_PARSING_STATUS (status, FALSE);
+ goto parse_block_content;
+ }
+@@ -1109,7 +1118,7 @@ cr_parser_parse_value_core (CRParser * a_this)
+ status = cr_tknzr_unget_token (PRIVATE (a_this)->tknzr,
+ token);
+ token = NULL;
+- status = cr_parser_parse_block_core (a_this);
++ status = cr_parser_parse_block_core (a_this, 0);
+ CHECK_PARSING_STATUS (status, FALSE);
+ ref++;
+ goto continue_parsing;
+@@ -1123,7 +1132,7 @@ cr_parser_parse_value_core (CRParser * a_this)
+ status = cr_tknzr_unget_token (PRIVATE (a_this)->tknzr,
+ token);
+ token = NULL;
+- status = cr_parser_parse_any_core (a_this);
++ status = cr_parser_parse_any_core (a_this, 0);
+ if (status == CR_OK) {
+ ref++;
+ goto continue_parsing;
+@@ -1162,10 +1171,12 @@ cr_parser_parse_value_core (CRParser * a_this)
+ * | FUNCTION | DASHMATCH | '(' any* ')' | '[' any* ']' ] S*;
+ *
+ *@param a_this the current instance of #CRParser.
++ *@param n_calls used to limit recursion depth
+ *@return CR_OK upon successfull completion, an error code otherwise.
+ */
+ static enum CRStatus
+-cr_parser_parse_any_core (CRParser * a_this)
++cr_parser_parse_any_core (CRParser * a_this,
++ guint n_calls)
+ {
+ CRToken *token1 = NULL,
+ *token2 = NULL;
+@@ -1174,6 +1185,9 @@ cr_parser_parse_any_core (CRParser * a_this)
+
+ g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
+
++ if (n_calls > RECURSIVE_CALLERS_LIMIT)
++ return CR_ERROR;
++
+ RECORD_INITIAL_POS (a_this, &init_pos);
+
+ status = cr_tknzr_get_next_token (PRIVATE (a_this)->tknzr, &token1);
+@@ -1212,7 +1226,7 @@ cr_parser_parse_any_core (CRParser * a_this)
+ *We consider parameter as being an "any*" production.
+ */
+ do {
+- status = cr_parser_parse_any_core (a_this);
++ status = cr_parser_parse_any_core (a_this, n_calls + 1);
+ } while (status == CR_OK);
+
+ ENSURE_PARSING_COND (status == CR_PARSING_ERROR);
+@@ -1237,7 +1251,7 @@ cr_parser_parse_any_core (CRParser * a_this)
+ }
+
+ do {
+- status = cr_parser_parse_any_core (a_this);
++ status = cr_parser_parse_any_core (a_this, n_calls + 1);
+ } while (status == CR_OK);
+
+ ENSURE_PARSING_COND (status == CR_PARSING_ERROR);
+@@ -1265,7 +1279,7 @@ cr_parser_parse_any_core (CRParser * a_this)
+ }
+
+ do {
+- status = cr_parser_parse_any_core (a_this);
++ status = cr_parser_parse_any_core (a_this, n_calls + 1);
+ } while (status == CR_OK);
+
+ ENSURE_PARSING_COND (status == CR_PARSING_ERROR);
+--
+GitLab
+
diff --git a/SPECS/libcroco.spec b/SPECS/libcroco.spec
index 348e543..a2f0573 100644
--- a/SPECS/libcroco.spec
+++ b/SPECS/libcroco.spec
@@ -1,12 +1,14 @@
Name: libcroco
Summary: A CSS2 parsing library
Version: 0.6.12
-Release: 4%{?dist}
+Release: 4%{?dist}.1
License: LGPLv2
Group: System Environment/Libraries
Source: http://download.gnome.org/sources/libcroco/0.6/%{name}-%{version}.tar.xz
-#Fedora specific patch
-Patch0: libcroco-0.6.1-multilib.patch
+#Fedora-specific patch
+Patch0: libcroco-0.6.1-multilib.patch
+# https://gitlab.gnome.org/GNOME/libcroco/-/merge_requests/5
+Patch1: CVE-2020-12825.patch
BuildRequires: pkgconfig
BuildRequires: glib2-devel
@@ -27,6 +29,7 @@ files to allow you to develop with libcroco.
%prep
%setup -q
%patch0 -p1 -b .multilib
+%patch1 -p1 -b .CVE-2020-12825
%build
%configure --disable-static
@@ -57,6 +60,10 @@ make check
%{_datadir}/gtk-doc/html/libcroco
%changelog
+* Thu Aug 06 2020 Michael Catanzaro <mcatanzaro@redhat.com> - 0.6.12-4.1
+- Fix CVE-2020-12825
+ Resolves: #1866484
+
* Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.6.12-4
- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild