components/subversion/patches/003-CVE-2013-4505.patch
branchs11u1-sru
changeset 2944 ddcd7e77db21
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/subversion/patches/003-CVE-2013-4505.patch	Tue Feb 11 06:22:29 2014 -0800
@@ -0,0 +1,127 @@
+# CVE-2013-4505
+# http://subversion.apache.org/security/CVE-2013-4505-advisory.txt
+
+--- tools/server-side/mod_dontdothat/mod_dontdothat.c	2011-11-28 12:02:41.000000000 -0800
++++ tools/server-side/mod_dontdothat/mod_dontdothat.c	2014-01-29 06:58:46.573510739 -0800
+@@ -30,12 +30,14 @@
+ #include <util_filter.h>
+ #include <ap_config.h>
+ #include <apr_strings.h>
++#include <apr_uri.h>
+ 
+ #include <expat.h>
+ 
+ #include "mod_dav_svn.h"
+ #include "svn_string.h"
+ #include "svn_config.h"
++#include "private/svn_fspath.h"
+ 
+ module AP_MODULE_DECLARE_DATA dontdothat_module;
+ 
+@@ -161,26 +163,71 @@
+     }
+ }
+ 
++/* duplicate of dav_svn__log_err() from mod_dav_svn/util.c */
++static void
++log_dav_err(request_rec *r,
++                dav_error *err,
++                int level)
++{
++  dav_error *errscan;
++
++  /* Log the errors */
++  /* ### should have a directive to log the first or all */
++  for (errscan = err; errscan != NULL; errscan = errscan->prev) {
++    apr_status_t status;
++
++    if (errscan->desc == NULL)
++      continue;
++
++#if AP_MODULE_MAGIC_AT_LEAST(20091119,0)
++    status = errscan->aprerr;
++#else
++    status = errscan->save_errno;
++#endif
++
++    ap_log_rerror(APLOG_MARK, level, status, r,
++        "%s  [%d, #%d]",
++        errscan->desc, errscan->status, errscan->error_id);
++  }
++}
++
+ static svn_boolean_t
+ is_this_legal(dontdothat_filter_ctx *ctx, const char *uri)
+ {
+   const char *relative_path;
+   const char *cleaned_uri;
+   const char *repos_name;
++  const char *uri_path;
+   int trailing_slash;
+   dav_error *derr;
+ 
+-  /* Ok, so we need to skip past the scheme, host, etc. */
+-  uri = ap_strstr_c(uri, "://");
+-  if (uri)
+-    uri = ap_strchr_c(uri + 3, '/');
++  /* uri can be an absolute uri or just a path, we only want the path to match
++   * against */
++  if (uri && svn_path_is_url(uri))
++  {
++    apr_uri_t parsed_uri;
++    apr_status_t rv = apr_uri_parse(ctx->r->pool, uri, &parsed_uri);
++    if (APR_SUCCESS != rv)
++    {
++      /* Error parsing the URI, log and reject request. */
++      ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, ctx->r,
++          "mod_dontdothat: blocked request after failing "
++          "to parse uri: '%s'", uri);
++      return FALSE;
++    }
++    uri_path = parsed_uri.path;
++  }
++  else
++  {
++    uri_path = uri;
++  }
+ 
+-  if (uri)
++  if (uri_path)
+     {
+       const char *repos_path;
+ 
+       derr = dav_svn_split_uri(ctx->r,
+-                               uri,
++                               uri_path,
+                                ctx->cfg->base_path,
+                                &cleaned_uri,
+                                &trailing_slash,
+@@ -194,7 +241,7 @@
+           if (! repos_path)
+             repos_path = "";
+ 
+-          repos_path = apr_psprintf(ctx->r->pool, "/%s", repos_path);
++          repos_path = svn_fspath__canonicalize(repos_path, ctx->r->pool);
+ 
+           /* First check the special cases that are always legal... */
+           for (idx = 0; idx < ctx->allow_recursive_ops->nelts; ++idx)
+@@ -228,6 +275,18 @@
+                 }
+             }
+         }
++      else
++      {
++        log_dav_err(ctx->r, derr, APLOG_ERR);
++        return FALSE;
++      }
++    }
++  else
++  {
++    ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, ctx->r,
++        "mod_dontdothat: empty uri passed to is_this_legal(), "
++        "module bug?");
++    return FALSE;
+     }
+ 
+   return TRUE;
+