mpv: fix CVE-2018-6360; FS#1578

This commit is contained in:
Svyatoslav Mishyn 2018-02-05 20:49:44 +02:00
parent 6eee435bae
commit f5e44ed35b
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GPG Key ID: 03A357820C977B78
4 changed files with 117 additions and 6 deletions

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@ -1 +1,2 @@
ab865014635762ab84a8e682ab9dedbe 09_ytdl-hook-whitelist-protocols.patch
ec86f42b091d891f9a932de0f6e873ad mpv-v0.27.0.tar.gz

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@ -1,5 +1,6 @@
untrusted comment: verify with /etc/ports/contrib.pub
RWSagIOpLGJF3z0Yob3LTyWbmkJXYzlufFALwQrF3S+OF8Voxo16/iGR6N3Z+75xYjnStxQ2Jr59Wj2Sj+Kn0EuYX3zGbn2pggU=
SHA256 (Pkgfile) = e270a3008184d66649336996fb97c7a900fdd5a1fc2640dbe7d533c6964a944c
RWSagIOpLGJF36Uy5lbcdGvZfiuBwsj8MYrh2Mjtcje2kAs7JcFZ3EpwvNFsMCv/qm9kEqH5ZbRcG7VZxAjrSFuq83MujFzkEQE=
SHA256 (Pkgfile) = c57d18136ac46d5d7e6930a6e63c1802e9eb7cc082e8704700e53d9a9aa9961b
SHA256 (.footprint) = 3872a22695e9c213f10e0bd6c0ae8fb7c2bba5425dd68eb1ec02c9e0ba171d09
SHA256 (mpv-v0.27.0.tar.gz) = 341d8bf18b75c1f78d5b681480b5b7f5c8b87d97a0d4f53a5648ede9c219a49c
SHA256 (09_ytdl-hook-whitelist-protocols.patch) = 6f6bc517c3b1d72a070af64df14428aee76e6cd123b934721851649833061918

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@ -0,0 +1,105 @@
Description: ytdl_hook: whitelist protocols from urls retrieved from youtube-dl
This patch is a combination of these upstream commits:
- e6e6b0dcc7e9 ("ytdl_hook: whitelist protocols from urls retrieved from
youtube-dl")
- f8263e82cc74 ("ytdl_hook: move url_is_safe earlier in code")
- ce42a965330d ("ytdl_hook: fix safe url checking with EDL urls")
.
jcowgill: backported to 0.27
Fixes CVE-2018-6360
Author: Ricardo Constantino <wiiaboo@gmail.com>
Bug: https://github.com/mpv-player/mpv/issues/5456
Bug-Debian: https://bugs.debian.org/888654
Applied-Upstream: v0.29
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- a/player/lua/ytdl_hook.lua
+++ b/player/lua/ytdl_hook.lua
@@ -15,6 +15,18 @@ local ytdl = {
local chapter_list = {}
+function Set (t)
+ local set = {}
+ for _, v in pairs(t) do set[v] = true end
+ return set
+end
+
+local safe_protos = Set {
+ "http", "https", "ftp", "ftps",
+ "rtmp", "rtmps", "rtmpe", "rtmpt", "rtmpts", "rtmpte",
+ "data"
+}
+
local function exec(args)
local ret = utils.subprocess({args = args})
return ret.status, ret.stdout, ret
@@ -71,6 +83,15 @@ local function edl_escape(url)
return "%" .. string.len(url) .. "%" .. url
end
+local function url_is_safe(url)
+ local proto = type(url) == "string" and url:match("^(.+)://") or nil
+ local safe = proto and safe_protos[proto]
+ if not safe then
+ msg.error(("Ignoring potentially unsafe url: '%s'"):format(url))
+ end
+ return safe
+end
+
local function time_to_secs(time_string)
local ret
@@ -182,6 +203,9 @@ local function edl_track_joined(fragment
for i = offset, #fragments do
local fragment = fragments[i]
+ if not url_is_safe(join_url(base, fragment)) then
+ return nil
+ end
table.insert(parts, edl_escape(join_url(base, fragment)))
if fragment.duration then
parts[#parts] =
@@ -201,6 +225,9 @@ local function add_single_video(json)
edl_track = edl_track_joined(track.fragments,
track.protocol, json.is_live,
track.fragment_base_url)
+ if not edl_track and not url_is_safe(track.url) then
+ return
+ end
if track.acodec and track.acodec ~= "none" then
-- audio track
mp.commandv("audio-add",
@@ -217,6 +244,9 @@ local function add_single_video(json)
edl_track = edl_track_joined(json.fragments, json.protocol,
json.is_live, json.fragment_base_url)
+ if not edl_track and not url_is_safe(json.url) then
+ return
+ end
-- normal video or single track
streamurl = edl_track or json.url
set_http_headers(json.http_headers)
@@ -408,6 +438,10 @@ mp.add_hook("on_load", 10, function ()
msg.debug("EDL: " .. playlist)
+ if not playlist then
+ return
+ end
+
-- can't change the http headers for each entry, so use the 1st
if json.entries[1] then
set_http_headers(json.entries[1].http_headers)
@@ -475,7 +509,9 @@ mp.add_hook("on_load", 10, function ()
site = entry["webpage_url"]
end
- playlist = playlist .. "ytdl://" .. site .. "\n"
+ if url_is_safe(site) then
+ playlist = playlist .. "ytdl://" .. site .. "\n"
+ end
end
mp.set_property("stream-open-filename", "memory://" .. playlist)

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@ -1,13 +1,14 @@
# Description: General Purpose video player based on MPlayer and mplayer2
# URL: http://mpv.io/
# URL: https://mpv.io/
# Maintainer: Svyatoslav Mishyn, svyatoslav dot mishyn at gmail dot com
# Depends on: alsa-lib docutils ffmpeg libass mesa3d
# Optional: libquvi libdvdnav libbluray libcdio-paranoia libvdpau
# Optional: youtube-dl libquvi libdvdnav libbluray libcdio-paranoia libvdpau
name=mpv
version=0.27.0
release=1
source=(https://github.com/$name-player/$name/archive/v$version/$name-v$version.tar.gz)
release=2
source=(https://github.com/$name-player/$name/archive/v$version/$name-v$version.tar.gz \
09_ytdl-hook-whitelist-protocols.patch)
build() {
cd $name-$version
@ -19,6 +20,9 @@ build() {
prt-get depinst libcdio-paranoia libdvdnav libbluray, respectively.\033[0m\n"
sleep 10
# CVE-2018-6360 fix
patch -p1 -i $SRC/09_ytdl-hook-whitelist-protocols.patch
./bootstrap.py
./waf configure ${PKGMK_MPV} \
--prefix=/usr \