dev-libs/apr: apply fix for CVE-2021-35940

Bug: https://bugs.gentoo.org/828545
Signed-off-by: Hans de Graaff <graaff@gentoo.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/dev-libs/apr/files/apr-1.7.0-CVE-2021-35940.patch b/dev-libs/apr/files/apr-1.7.0-CVE-2021-35940.patch
new file mode 100644
index 000000000000..f23d729f523e
--- /dev/null
+++ b/dev-libs/apr/files/apr-1.7.0-CVE-2021-35940.patch
@@ -0,0 +1,53 @@
+
+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
+
+Index: time/unix/time.c
+===================================================================
+--- a/time/unix/time.c	(revision 1891197)
++++ b/time/unix/time.c	(revision 1891198)
+@@ -142,6 +142,9 @@
+     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)
+Index: time/win32/time.c
+===================================================================
+--- a/time/win32/time.c	(revision 1891197)
++++ b/time/win32/time.c	(revision 1891198)
+@@ -54,6 +54,9 @@
+     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 @@
+     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)