Redhat EL 5 Patching

Index: CHANGES
===================================================================
--- CHANGES	(revision 548701)
+++ CHANGES	(working copy)
@@ -1,6 +1,10 @@
                                                         -*- coding: utf-8 -*-
 Changes with Apache 2.2.5
 
+  *) SECURITY: CVE-2007-1863 (cve.mitre.org)
+     mod_cache: Prevent segmentation fault if a Cache-Control header has
+     no value [Niklas Edmundsson]
+
   *) mod_cache: Let Cache-Control max-age set the expiration of the cached
      representation if Expires is not set.  [Justin Erenkrantz]
 
Index: modules/cache/cache_util.c
===================================================================
--- modules/cache/cache_util.c	(revision 548701)
+++ modules/cache/cache_util.c	(working copy)
@@ -243,7 +243,8 @@
     age = ap_cache_current_age(info, age_c, r->request_time);
 
     /* extract s-maxage */
-    if (cc_cresp && ap_cache_liststr(r->pool, cc_cresp, "s-maxage", &val)) {
+    if (cc_cresp && ap_cache_liststr(r->pool, cc_cresp, "s-maxage", &val)
+        && val != NULL) {
         smaxage = apr_atoi64(val);
     }
     else {
@@ -252,7 +253,8 @@
 
     /* extract max-age from request */
     if (!conf->ignorecachecontrol
-        && cc_req && ap_cache_liststr(r->pool, cc_req, "max-age", &val)) {
+        && cc_req && ap_cache_liststr(r->pool, cc_req, "max-age", &val)
+        && val != NULL) {
         maxage_req = apr_atoi64(val);
     }
     else {
@@ -260,7 +262,8 @@
     }
 
     /* extract max-age from response */
-    if (cc_cresp && ap_cache_liststr(r->pool, cc_cresp, "max-age", &val)) {
+    if (cc_cresp && ap_cache_liststr(r->pool, cc_cresp, "max-age", &val)
+        && val != NULL) {
         maxage_cresp = apr_atoi64(val);
     }
     else {
@@ -282,7 +285,20 @@
 
     /* extract max-stale */
     if (cc_req && ap_cache_liststr(r->pool, cc_req, "max-stale", &val)) {
-        maxstale = apr_atoi64(val);
+        if(val != NULL) {
+            maxstale = apr_atoi64(val);
+        }
+        else {
+            /*
+             * If no value is assigned to max-stale, then the client is willing
+             * to accept a stale response of any age (RFC2616 14.9.3). We will
+             * set it to one year in this case as this situation is somewhat
+             * similar to a "never expires" Expires header (RFC2616 14.21)
+             * which is set to a date one year from the time the response is
+             * sent in this case.
+             */
+            maxstale = APR_INT64_C(86400*365);
+        }
     }
     else {
         maxstale = 0;
@@ -290,7 +306,8 @@
 
     /* extract min-fresh */
     if (!conf->ignorecachecontrol
-        && cc_req && ap_cache_liststr(r->pool, cc_req, "min-fresh", &val)) {
+        && cc_req && ap_cache_liststr(r->pool, cc_req, "min-fresh", &val)
+        && val != NULL) {
         minfresh = apr_atoi64(val);
     }
     else {
@@ -419,6 +436,9 @@
                                                   next - val_start);
                         }
                     }
+                    else {
+                        *val = NULL;
+                    }
                 }
                 return 1;
             }

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