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authorGuillem Jover <guillem@debian.org>2014-06-17 04:25:52 -0400
committerRichard Purdie <richard.purdie@linuxfoundation.org>2014-06-17 10:23:53 +0100
commit14058e84dc88e7cb48a8521e438c2b11b84e29bb (patch)
tree055cb0bcac150cadeeeee36f99ea5a99549cde4c /meta/recipes-devtools/dpkg/dpkg
parent4eea29a54a0d632f41b62568681777588a449d09 (diff)
downloadast2050-yocto-poky-14058e84dc88e7cb48a8521e438c2b11b84e29bb.zip
ast2050-yocto-poky-14058e84dc88e7cb48a8521e438c2b11b84e29bb.tar.gz
dpkg: Security Advisory - CVE-2014-3127
v2 changes: * update format for commit log * add Upstream-Status for patch commit a12eb58959d0a10584a428f4a3103a49204c410f upstream Dpkg::Source::Patch: Outright reject C-style filenames in patches Because patch only started recognizing C-style filenames in diffs in version 2.7, it's not safe to assume one behaviour or the other, as the system might or might not have a recent enough version, or a GNU patch program at all. There's also no reason we should be supporting this kind of strange encoded filenames in patches, when we have not done so up to now. Let's just ban these types of diffs and be done with it. Fixes: CVE-2014-0471, CVE-2014-3127 Closes: #746306 [drop the text for debian/changelog,because it's not suitable for the veriosn] (From OE-Core rev: 2c3838443eacd3a86ea8917ea53a20248e7bdf03) Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com> Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools/dpkg/dpkg')
-rw-r--r--meta/recipes-devtools/dpkg/dpkg/dpkg-1.17.4-CVE-2014-0471-CVE-2014-3127.patch68
1 files changed, 68 insertions, 0 deletions
diff --git a/meta/recipes-devtools/dpkg/dpkg/dpkg-1.17.4-CVE-2014-0471-CVE-2014-3127.patch b/meta/recipes-devtools/dpkg/dpkg/dpkg-1.17.4-CVE-2014-0471-CVE-2014-3127.patch
new file mode 100644
index 0000000..e59c666
--- /dev/null
+++ b/meta/recipes-devtools/dpkg/dpkg/dpkg-1.17.4-CVE-2014-0471-CVE-2014-3127.patch
@@ -0,0 +1,68 @@
+dpkg: Security Advisory - CVE-2014-3127
+
+commit a12eb58959d0a10584a428f4a3103a49204c410f upstream
+
+dpkg 1.15.9 on Debian squeeze introduces support for the "C-style
+encoded filenames" feature without recognizing that the squeeze patch
+program lacks this feature, which triggers an interaction error that
+allows remote attackers to conduct directory traversal attacks and
+modify files outside of the intended directories via a crafted source
+package.
+
+NOTE: this can be considered a release engineering problem in the
+effort to fix CVE-2014-0471.
+
+Upstream-Status: Backport
+
+Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
+Signed-off-by: Wenzong Fan <wenzong.fan@windriver.com>
+=====================================================
+diff -uarN dpkg-1.17.1-org/scripts/Dpkg/Source/Patch.pm dpkg-1.17.1/scripts/Dpkg/Source/Patch.pm
+--- dpkg-1.17.1-org/scripts/Dpkg/Source/Patch.pm 2014-06-05 16:32:41.765446564 +0800
++++ dpkg-1.17.1/scripts/Dpkg/Source/Patch.pm 2014-06-05 16:37:21.461446359 +0800
+@@ -324,31 +324,6 @@
+ return $line;
+ }
+
+-my %ESCAPE = ((
+- 'a' => "\a",
+- 'b' => "\b",
+- 'f' => "\f",
+- 'n' => "\n",
+- 'r' => "\r",
+- 't' => "\t",
+- 'v' => "\cK",
+- '\\' => '\\',
+- '"' => '"',
+-), (
+- map { sprintf('%03o', $_) => chr($_) } (0..255)
+-));
+-
+-sub _unescape {
+- my ($diff, $str) = @_;
+-
+- if (exists $ESCAPE{$str}) {
+- return $ESCAPE{$str};
+- } else {
+- error(_g('diff %s patches file with unknown escape sequence \\%s'),
+- $diff, $str);
+- }
+-}
+-
+ # Fetch the header filename ignoring the optional timestamp
+ sub _fetch_filename {
+ my ($diff, $header) = @_;
+@@ -358,12 +333,7 @@
+
+ # Is it a C-style string?
+ if ($header =~ m/^"/) {
+- $header =~ m/^"((?:[^\\"]|\\.)*)"/;
+- error(_g('diff %s patches file with unbalanced quote'), $diff)
+- unless defined $1;
+-
+- $header = $1;
+- $header =~ s/\\([0-3][0-7]{2}|.)/_unescape($diff, $1)/eg;
++ error(_g('diff %s patches file with C-style encoded filename'), $diff);
+ } else {
+ # Tab is the official separator, it's always used when
+ # filename contain spaces. Try it first, otherwise strip on space
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