File 0004-Restore-fix-for-out-of-bounds-array-derefe... of Package apr

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File 0004-Restore-fix-for-out-of-bounds-array-dereference.patch of Package apr (Revision eaf25bbd4bb9f3ae97d9441e73feb1ec)

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tim Mullin <tim@cpanel.net>
Date: Wed, 25 Aug 2021 18:25:25 +0000
Subject: [PATCH 4/5] Restore fix for out-of-bounds array dereference

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
---
 time/unix/time.c  | 3 +++
 time/win32/time.c | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/time/unix/time.c b/time/unix/time.c
index dfa45e6..7f09581 100644
--- a/time/unix/time.c
+++ b/time/unix/time.c
@@ -142,6 +142,9 @@ APR_DECLARE(apr_status_t) apr_time_exp_get(apr_time_t *t, apr_time_exp_t *xt)
     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)
diff --git a/time/win32/time.c b/time/win32/time.c
index 81dc2a4..eb1e6f1 100644
--- a/time/win32/time.c
+++ b/time/win32/time.c
@@ -54,6 +54,9 @@ static void SystemTimeToAprExpTime(apr_time_exp_t *xt, SYSTEMTIME *tm)
     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_get(apr_time_t *t,
     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)

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File 0004-Restore-fix-for-out-of-bounds-array-dereference.patch of Package apr (Revision eaf25bbd4bb9f3ae97d9441e73feb1ec)

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