Marcus Meissner
2e036aa0fa
- update tar-1.29-extract_pathname_bypass.patch to the upstream one that fixes POINTYFEATHER issue but it doesn't limit append or create operations as the initial patch did [bsc#1012633] [CVE-2016-6321] OBS-URL: https://build.opensuse.org/request/show/446474 OBS-URL: https://build.opensuse.org/package/show/Base:System/tar?expand=0&rev=75
36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
From 7340f67b9860ea0531c1450e5aa261c50f67165d Mon Sep 17 00:00:00 2001
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From: Paul Eggert <eggert@Penguin.CS.UCLA.EDU>
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Date: Sat, 29 Oct 2016 21:04:40 -0700
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Subject: When extracting, skip ".." members
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* NEWS: Document this.
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* src/extract.c (extract_archive): Skip members whose names
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contain "..".
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---
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Index: tar-1.29/src/extract.c
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===================================================================
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--- tar-1.29.orig/src/extract.c 2016-01-20 10:26:32.000000000 +0100
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+++ tar-1.29/src/extract.c 2016-12-15 18:11:56.752575954 +0100
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@@ -1629,12 +1629,20 @@ extract_archive (void)
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{
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char typeflag;
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tar_extractor_t fun;
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+ bool skip_dotdot_name;
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fatal_exit_hook = extract_finish;
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set_next_block_after (current_header);
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+ skip_dotdot_name = (!absolute_names_option
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+ && contains_dot_dot (current_stat_info.orig_file_name));
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+ if (skip_dotdot_name)
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+ ERROR ((0, 0, _("%s: Member name contains '..'"),
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+ quotearg_colon (current_stat_info.orig_file_name)));
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+
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if (!current_stat_info.file_name[0]
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+ || skip_dotdot_name
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|| (interactive_option
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&& !confirm ("extract", current_stat_info.file_name)))
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{
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