Skip members whose names contain "..". Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6321
Upstream patch: http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa261c50f671 Signed-off-by: Sona Sarmadi <sona.sarm...@enea.com> --- meta/recipes-extended/tar/tar/CVE-2016-6321.patch | 58 +++++++++++++++++++++++ meta/recipes-extended/tar/tar_1.29.bb | 1 + 2 files changed, 59 insertions(+) create mode 100644 meta/recipes-extended/tar/tar/CVE-2016-6321.patch diff --git a/meta/recipes-extended/tar/tar/CVE-2016-6321.patch b/meta/recipes-extended/tar/tar/CVE-2016-6321.patch new file mode 100644 index 0000000..4705d2d --- /dev/null +++ b/meta/recipes-extended/tar/tar/CVE-2016-6321.patch @@ -0,0 +1,58 @@ +From 7340f67b9860ea0531c1450e5aa261c50f67165d Mon Sep 17 00:00:00 2001 +From: Paul Eggert <egg...@penguin.cs.ucla.edu> +Date: Sat, 29 Oct 2016 21:04:40 -0700 +Subject: When extracting, skip ".." members + + * NEWS: Document this. + * src/extract.c (extract_archive): Skip members whose names + contain "..". + +CVE: CVE-2016-6321 +Upstream-Status: Backport + +Signed-off-by: Sona Sarmadi <sona.sarm...@enea.com> + +diff -Nurp a/NEWS b/NEWS +--- a/NEWS 2016-05-16 10:51:12.000000000 +0200 ++++ b/NEWS 2017-02-24 07:51:53.279524073 +0100 +@@ -1,9 +1,15 @@ +-GNU tar NEWS - User visible changes. 2016-05-16 ++GNU tar NEWS - User visible changes. 2016-10-29 + Please send GNU tar bug reports to <bug-...@gnu.org> + + + version 1.29 - Sergey Poznyakoff, 2016-05-16 + ++CVE-2016-6321 ++* Member names containing '..' components are now skipped when extracting. ++This fixes tar's behavior to match its documentation, and is a bit ++safer when extracting untrusted archives over old files (an unsafe ++practice that the tar manual has long recommended against). ++ + * New options: --verbatim-files-from, --no-verbatim-files-from + + The --verbatim-files-from option instructs tar to treat each line read +diff -Nurp a/src/extract.c b/src/extract.c +--- a/src/extract.c 2016-01-20 10:26:32.000000000 +0100 ++++ b/src/extract.c 2017-02-24 07:41:27.990942240 +0100 +@@ -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))) + { diff --git a/meta/recipes-extended/tar/tar_1.29.bb b/meta/recipes-extended/tar/tar_1.29.bb index efce57d..f22d9c9 100644 --- a/meta/recipes-extended/tar/tar_1.29.bb +++ b/meta/recipes-extended/tar/tar_1.29.bb @@ -8,6 +8,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504" SRC_URI += "file://remove-gets.patch \ file://musl_dirent.patch \ + file://CVE-2016-6321.patch \ " SRC_URI[md5sum] = "955cd533955acb1804b83fd70218da51" SRC_URI[sha256sum] = "236b11190c0a3a6885bdb8d61424f2b36a5872869aa3f7f695dea4b4843ae2f2" -- 1.9.1 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
