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66bc50a968
Adds patch from Debian.
105 lines
3.4 KiB
Diff
105 lines
3.4 KiB
Diff
Description: CVE-2015-1419: config option deny_file is not handled correctly
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Author: Marcus Meissner <meissner@suse.com>
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Origin: https://bugzilla.novell.com/show_bug.cgi?id=CVE-2015-1419
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Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776922
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Last-Update: 2015-02-24
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---
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This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
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Index: trunk/ls.c
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===================================================================
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--- trunk.orig/ls.c
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+++ trunk/ls.c
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@@ -7,6 +7,7 @@
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* Would you believe, code to handle directory listing.
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*/
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+#include <stdlib.h>
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#include "ls.h"
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#include "access.h"
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#include "defs.h"
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@@ -243,11 +244,42 @@ vsf_filename_passes_filter(const struct
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struct mystr temp_str = INIT_MYSTR;
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struct mystr brace_list_str = INIT_MYSTR;
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struct mystr new_filter_str = INIT_MYSTR;
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+ struct mystr normalize_filename_str = INIT_MYSTR;
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+ const char *normname;
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+ const char *path;
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int ret = 0;
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char last_token = 0;
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int must_match_at_current_pos = 1;
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+
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str_copy(&filter_remain_str, p_filter_str);
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- str_copy(&name_remain_str, p_filename_str);
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+
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+ /* normalize filepath */
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+ path = str_strdup(p_filename_str);
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+ normname = realpath(path, NULL);
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+ if (normname == NULL)
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+ goto out;
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+ str_alloc_text(&normalize_filename_str, normname);
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+
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+ if (!str_isempty (&filter_remain_str) && !str_isempty(&normalize_filename_str)) {
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+ if (str_get_char_at(p_filter_str, 0) == '/') {
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+ if (str_get_char_at(&normalize_filename_str, 0) != '/') {
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+ str_getcwd (&name_remain_str);
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+
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+ if (str_getlen(&name_remain_str) > 1) /* cwd != root dir */
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+ str_append_char (&name_remain_str, '/');
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+
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+ str_append_str (&name_remain_str, &normalize_filename_str);
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+ }
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+ else
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+ str_copy (&name_remain_str, &normalize_filename_str);
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+ } else {
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+ if (str_get_char_at(p_filter_str, 0) != '{')
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+ str_basename (&name_remain_str, &normalize_filename_str);
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+ else
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+ str_copy (&name_remain_str, &normalize_filename_str);
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+ }
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+ } else
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+ str_copy(&name_remain_str, &normalize_filename_str);
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while (!str_isempty(&filter_remain_str) && *iters < VSFTP_MATCHITERS_MAX)
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{
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@@ -379,6 +411,9 @@ vsf_filename_passes_filter(const struct
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ret = 0;
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}
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out:
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+ free((char*) normname);
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+ free((char*) path);
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+ str_free(&normalize_filename_str);
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str_free(&filter_remain_str);
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str_free(&name_remain_str);
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str_free(&temp_str);
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Index: trunk/str.c
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===================================================================
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--- trunk.orig/str.c
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+++ trunk/str.c
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@@ -723,3 +723,14 @@ str_replace_unprintable(struct mystr* p_
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}
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}
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+void
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+str_basename (struct mystr* d_str, const struct mystr* path)
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+{
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+ static struct mystr tmp;
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+
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+ str_copy (&tmp, path);
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+ str_split_char_reverse(&tmp, d_str, '/');
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+
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+ if (str_isempty(d_str))
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+ str_copy (d_str, path);
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+}
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Index: trunk/str.h
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===================================================================
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--- trunk.orig/str.h
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+++ trunk/str.h
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@@ -101,6 +101,7 @@ void str_replace_unprintable(struct myst
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int str_atoi(const struct mystr* p_str);
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filesize_t str_a_to_filesize_t(const struct mystr* p_str);
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unsigned int str_octal_to_uint(const struct mystr* p_str);
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+void str_basename (struct mystr* d_str, const struct mystr* path);
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/* PURPOSE: Extract a line of text (delimited by \n or EOF) from a string
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* buffer, starting at character position 'p_pos'. The extracted line will
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