52 lines
1.5 KiB
Diff
52 lines
1.5 KiB
Diff
Fix CVE-2016-6321:
|
|
|
|
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6321
|
|
https://security-tracker.debian.org/tracker/CVE-2016-6321
|
|
|
|
Patch adapted from upstream source repository (the changes to 'NEWS'
|
|
don't apply to the Tar 1.29 release tarball).
|
|
|
|
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa261c50f67165d
|
|
|
|
From 7340f67b9860ea0531c1450e5aa261c50f67165d Mon Sep 17 00:00:00 2001
|
|
From: Paul Eggert <eggert@Penguin.CS.UCLA.EDU>
|
|
Date: Sat, 29 Oct 2016 21:04:40 -0700
|
|
Subject: [PATCH] When extracting, skip ".." members
|
|
|
|
* NEWS: Document this.
|
|
* src/extract.c (extract_archive): Skip members whose names
|
|
contain "..".
|
|
---
|
|
NEWS | 8 +++++++-
|
|
src/extract.c | 8 ++++++++
|
|
2 files changed, 15 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/src/extract.c b/src/extract.c
|
|
index f982433..7904148 100644
|
|
--- a/src/extract.c
|
|
+++ b/src/extract.c
|
|
@@ -1629,12 +1629,20 @@ extract_archive (void)
|
|
{
|
|
char typeflag;
|
|
tar_extractor_t fun;
|
|
+ bool skip_dotdot_name;
|
|
|
|
fatal_exit_hook = extract_finish;
|
|
|
|
set_next_block_after (current_header);
|
|
|
|
+ skip_dotdot_name = (!absolute_names_option
|
|
+ && contains_dot_dot (current_stat_info.orig_file_name));
|
|
+ if (skip_dotdot_name)
|
|
+ ERROR ((0, 0, _("%s: Member name contains '..'"),
|
|
+ quotearg_colon (current_stat_info.orig_file_name)));
|
|
+
|
|
if (!current_stat_info.file_name[0]
|
|
+ || skip_dotdot_name
|
|
|| (interactive_option
|
|
&& !confirm ("extract", current_stat_info.file_name)))
|
|
{
|
|
--
|
|
2.11.0
|
|
|