From 9227bee96c22aba74400e8c11af2600512f5d7cd Mon Sep 17 00:00:00 2001
From: Joe Orton <jorton@apache.org>
Date: Tue, 16 Apr 2019 07:54:27 +0000
Subject: [PATCH] Add security note on CoreDumpDirectory for Linux.

Reviewed by: icing, elukey


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1857626 13f79535-47bb-0310-9956-ffa450edef68
---
 docs/manual/mod/mpm_common.xml | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/docs/manual/mod/mpm_common.xml b/docs/manual/mod/mpm_common.xml
index 682caf14b0..6f755233f6 100644
--- a/docs/manual/mod/mpm_common.xml
+++ b/docs/manual/mod/mpm_common.xml
@@ -50,6 +50,17 @@ switch before dumping core</description>
     operating system is not configured to write core files to the working directory
     of the crashing processes.</p>
 
+    <note type="warning">
+      <title>Security note for Linux systems</title>
+
+      <p>Using this directive on Linux may allow other processes on
+      the system (if running with similar privileges, such as CGI
+      scripts) to attach to httpd children via the <code>ptrace</code>
+      system call.  This may make weaken the protection from certain
+      security attacks.  It is not recommended to use this directive
+      on production systems.</p>
+    </note>
+    
     <note><title>Core Dumps on Linux</title>
       <p>If Apache httpd starts as root and switches to another user, the
       Linux kernel <em>disables</em> core dumps even if the directory is
-- 
2.40.0