apr: patch CVE-2021-35940

Signed-off-by: Michal Vasilek <michal.vasilek@nic.cz>

libs/apr/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=apr
 PKG_VERSION:=1.7.0
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=@APACHE/apr/

libs/apr/patches/CVE-2021-35940.patch

@@ -0,0 +1,49 @@
+
+SECURITY: CVE-2021-35940 (cve.mitre.org)
+
+Restore fix for CVE-2017-12613 which was missing in 1.7.x branch, though
+was addressed in 1.6.x in 1.6.3 and later via r1807976.
+
+The fix was merged back to 1.7.x in r1891198.
+
+Since this was a regression in 1.7.0, a new CVE name has been assigned
+to track this, CVE-2021-35940.
+
+Thanks to Iveta Cesalova <icesalov redhat.com> for reporting this issue.
+
+https://svn.apache.org/viewvc?view=revision&revision=1891198
+
+--- a/time/unix/time.c
++++ b/time/unix/time.c
+@@ -142,6 +142,9 @@ APR_DECLARE(apr_status_t) apr_time_exp_g
+     static const int dayoffset[12] =
+     {306, 337, 0, 31, 61, 92, 122, 153, 184, 214, 245, 275};
+ 
++    if (xt->tm_mon < 0 || xt->tm_mon >= 12)
++        return APR_EBADDATE;
++
+     /* shift new year to 1st March in order to make leap year calc easy */
+ 
+     if (xt->tm_mon < 2)
+--- a/time/win32/time.c
++++ b/time/win32/time.c
+@@ -54,6 +54,9 @@ static void SystemTimeToAprExpTime(apr_t
+     static const int dayoffset[12] =
+     {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
+ 
++    if (tm->wMonth < 1 || tm->wMonth > 12)
++        return APR_EBADDATE;
++
+     /* Note; the caller is responsible for filling in detailed tm_usec,
+      * tm_gmtoff and tm_isdst data when applicable.
+      */
+@@ -228,6 +231,9 @@ APR_DECLARE(apr_status_t) apr_time_exp_g
+     static const int dayoffset[12] =
+     {306, 337, 0, 31, 61, 92, 122, 153, 184, 214, 245, 275};
+ 
++    if (xt->tm_mon < 0 || xt->tm_mon >= 12)
++        return APR_EBADDATE;
++
+     /* shift new year to 1st March in order to make leap year calc easy */
+ 
+     if (xt->tm_mon < 2)