Package: release.debian.org
Severity: normal
Tags: wheezy
User: release.debian....@packages.debian.org
Usertags: pu
Hi,
I'd like to update apt-daemon in wheezy to fix CVE-2015-1323 which is
already fixed in squeeze-lts.
The debdiff is attached.
-- System Information:
Debian Release: stretch/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'stable-updates'), (500, 'unstable'),
(500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.1.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
diff --git a/debian/changelog b/debian/changelog
index eb3eb13..80547b9 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+aptdaemon (0.45-2+deb7u1) oldstable-proposed-updates; urgency=medium
+
+ * Non maintainer upload
+ * Add CVE-2015-1323.patch to address CVE-2015-1323 - taken from
+ 0.43+bzr805-0ubuntu10 (Closes: #789162)
+
+ -- Guido Günther <a...@sigxcpu.org> Mon, 29 Feb 2016 08:33:47 +0100
+
aptdaemon (0.45-2) unstable; urgency=medium
* Check downloaded key id; merged from Ubuntu (CVE-2012-0962)
diff --git a/debian/patches/CVE-2015-1323.patch
b/debian/patches/CVE-2015-1323.patch
new file mode 100644
index 0000000..09bcfb6
--- /dev/null
+++ b/debian/patches/CVE-2015-1323.patch
@@ -0,0 +1,373 @@
+From: =?utf-8?q?Guido_G=C3=BCnther?= <a...@sigxcpu.org>
+Date: Sun, 28 Feb 2016 19:55:02 +0100
+Subject: CVE-2015-1323
+
+---
+ aptdaemon/core.py | 10 ++++++----
+ aptdaemon/pkcompat.py | 11 +++++++----
+ aptdaemon/policykit1.py | 9 ++++++---
+ aptdaemon/worker.py | 43 ++++++++++++++++++++++++++++++++++++++-----
+ tests/test_dbus_type.py | 6 ++++--
+ tests/test_unicodedecoding.py | 3 ++-
+ tests/test_worker.py | 31 ++++++++++++++++---------------
+ 7 files changed, 79 insertions(+), 34 deletions(-)
+
+diff --git a/aptdaemon/core.py b/aptdaemon/core.py
+index b69923d..6d841e3 100644
+--- a/aptdaemon/core.py
++++ b/aptdaemon/core.py
+@@ -330,7 +330,7 @@ class Transaction(DBusObject):
+ "DebconfSocket", "MetaData", "Locale",
+ "RemoveObsoleteDepends")
+
+- def __init__(self, tid, role, queue, pid, uid, cmdline, sender,
++ def __init__(self, tid, role, queue, pid, uid, gid, cmdline, sender,
+ connect=True, bus=None, packages=None, kwargs=None):
+ """Initialize a new Transaction instance.
+
+@@ -365,6 +365,7 @@ class Transaction(DBusObject):
+ kwargs = {}
+ self.queue = queue
+ self.uid = uid
++ self.gid = gid
+ self.locale = dbus.String("")
+ self.allow_unauthenticated = dbus.Boolean(False)
+ self.remove_obsoleted_depends = dbus.Boolean(False)
+@@ -1469,11 +1470,12 @@ class AptDaemon(DBusObject):
+ @inline_callbacks
+ def _create_trans(self, role, sender, packages=None, kwargs=None):
+ """Helper method which returns the tid of a new transaction."""
+- pid, uid, cmdline = \
++ pid, uid, gid, cmdline = \
+ yield policykit1.get_proc_info_from_dbus_name(sender,
self.bus)
+ tid = uuid.uuid4().get_hex()
+- trans = Transaction(tid, role, self.queue, pid, uid, cmdline, sender,
+- packages=packages, kwargs=kwargs, bus=self.bus)
++ trans = Transaction(
++ tid, role, self.queue, pid, uid, gid, cmdline, sender,
++ packages=packages, kwargs=kwargs, bus=self.bus)
+ self.queue.limbo[trans.tid] = trans
+ return_value(trans.tid)
+
+diff --git a/aptdaemon/pkcompat.py b/aptdaemon/pkcompat.py
+index 0806201..845c72e 100644
+--- a/aptdaemon/pkcompat.py
++++ b/aptdaemon/pkcompat.py
+@@ -408,9 +408,10 @@ class PackageKit(aptdaemon.core.DBusObject):
+
+ @inline_callbacks
+ def _get_tid(self, sender):
+- pid, uid, cmdline = \
++ pid, uid, gid, cmdline = \
+ yield policykit1.get_proc_info_from_dbus_name(sender,
self.bus)
+- pktrans = PackageKitTransaction(pid, uid, cmdline, self.queue, sender)
++ pktrans = PackageKitTransaction(
++ pid, uid, gid, cmdline, self.queue, sender)
+ return_value(pktrans.tid)
+
+ # pylint: disable-msg=C0103,C0322
+@@ -531,7 +532,8 @@ class MergedTransaction(aptdaemon.core.Transaction):
+ def __init__(self, pktrans, role, queue, connect=True,
+ bus=None, packages=None, kwargs=None):
+ aptdaemon.core.Transaction.__init__(self, pktrans.tid[1:], role,
queue,
+- pktrans.pid, pktrans.uid,
++ pktrans.pid,
++ pktrans.uid, pktrans.gid,
+ pktrans.cmdline, pktrans.sender,
+ connect, bus, packages, kwargs)
+ self.pktrans = pktrans
+@@ -617,7 +619,7 @@ class PackageKitTransaction(aptdaemon.core.DBusObject):
+
+ """Provides a PackageKit transaction object."""
+
+- def __init__(self, pid, uid, cmdline, queue, sender,
++ def __init__(self, pid, uid, gid, cmdline, queue, sender,
+ connect=True, bus=None):
+ pklog.info("Initializing PackageKit transaction")
+ bus_name = None
+@@ -643,6 +645,7 @@ class PackageKitTransaction(aptdaemon.core.DBusObject):
+ self._status = pk_enums.STATUS_SETUP
+ self._last_package = ""
+ self.uid = uid
++ self.gid = gid
+ self.pid = pid
+ self.cmdline = cmdline
+ self.role = pk_enums.ROLE_UNKNOWN
+diff --git a/aptdaemon/policykit1.py b/aptdaemon/policykit1.py
+index 3ecef85..ed45a41 100644
+--- a/aptdaemon/policykit1.py
++++ b/aptdaemon/policykit1.py
+@@ -151,11 +151,14 @@ def get_proc_info_from_dbus_name(dbus_name, bus=None):
+ bus = dbus.SystemBus()
+ pid = yield get_pid_from_dbus_name(dbus_name, bus)
+ with open("/proc/%s/status" % pid) as proc:
+- values = [v for v in proc.readlines() if v.startswith("Uid:")]
++ lines = proc.readlines()
++ uid_values = [v for v in lines if v.startswith("Uid:")]
++ gid_values = [v for v in lines if v.startswith("Gid:")]
+ with open("/proc/%s/cmdline" % pid) as cmdline_file:
+ cmdline = cmdline_file.read()
+- uid = int(values[0].split()[1])
+- return_value((pid, uid, cmdline))
++ uid = int(uid_values[0].split()[1])
++ gid = int(gid_values[0].split()[1])
++ return_value((pid, uid, gid, cmdline))
+
+
+ # vim:ts=4:sw=4:et
+diff --git a/aptdaemon/worker.py b/aptdaemon/worker.py
+index c0f88f2..d41fc17 100644
+--- a/aptdaemon/worker.py
++++ b/aptdaemon/worker.py
+@@ -63,6 +63,25 @@ log = logging.getLogger("AptDaemon.Worker")
+ _ = lambda s: s
+
+
++@contextlib.contextmanager
++def set_euid_egid(uid, gid):
++ # no need to drop privs
++ if os.getuid() != 0 and os.getgid() != 0:
++ yield
++ return
++ # temporary drop privs
++ os.setegid(gid)
++ old_groups = os.getgroups()
++ os.setgroups([gid])
++ os.seteuid(uid)
++ try:
++ yield
++ finally:
++ os.seteuid(os.getuid())
++ os.setegid(os.getgid())
++ os.setgroups(old_groups)
++
++
+ class AptWorker(GObject.GObject):
+
+ """Worker which processes transactions from the queue."""
+@@ -588,7 +607,7 @@ password %s\n\n""" % (netloc_public + res.path,
res.username, res.password))
+ log.info("Installing local package file: %s", path)
+ # Check if the dpkg can be installed at all
+ trans.status = STATUS_RESOLVING_DEP
+- deb = self._check_deb_file(path, force, trans.uid)
++ deb = self._check_deb_file(path, force, trans.uid, trans.gid)
+ # Check for required changes and apply them before
+ (install, remove, unauth) = deb.required_changes
+ self._call_plugins("modify_cache_after")
+@@ -1173,7 +1192,7 @@ password %s\n\n""" % (netloc_public + res.path,
res.username, res.password))
+
+ return depends, required_download, required_space, unauthenticated
+
+- def _check_deb_file(self, path, force, uid):
++ def _check_deb_file(self, path, force, uid, gid):
+ """Perform some basic checks for the Debian package.
+
+ :param trans: The transaction instance.
+@@ -1182,8 +1201,15 @@ password %s\n\n""" % (netloc_public + res.path,
res.username, res.password))
+ """
+ #FIXME: Unblock lintian call
+ path = path.encode("UTF-8")
+- if not os.path.isfile(path):
+- raise TransactionFailed(ERROR_UNREADABLE_PACKAGE_FILE, path)
++ # This code runs as root for simulate and simulate requires no
++ # authentication - so we need to ensure we do not leak information
++ # about files here (LP: #1449587, CVE-2015-1323)
++ #
++ # Note that the actual lintian run is also droping privs (real,
++ # not just seteuid)
++ with set_euid_egid(uid, gid):
++ if not os.path.isfile(path):
++ raise TransactionFailed(ERROR_UNREADABLE_PACKAGE_FILE, path)
+ if not force and os.path.isfile("/usr/bin/lintian"):
+ tags_dir = os.path.join(apt_pkg.config.find_dir("Dir"),
+ "usr", "share", "aptdaemon")
+@@ -1210,10 +1236,17 @@ password %s\n\n""" % (netloc_public + res.path,
res.username, res.password))
+ fatal_args = ["/usr/bin/lintian", "--tags-from-file",
+ tags_fatal_file, "--no-override", path]
+ for lintian_args in (nonfatal_args, fatal_args):
++ def _perm_drop_privs():
++ try:
++ os.setgroups([gid])
++ except OSError:
++ pass
++ os.setgid(gid)
++ os.setuid(uid)
+ proc = subprocess.Popen(lintian_args,
+ stderr=subprocess.STDOUT,
+ stdout=subprocess.PIPE,
close_fds=True,
+- preexec_fn=lambda: os.setuid(uid))
++ preexec_fn=_perm_drop_privs)
+ while proc.poll() is None:
+ self._iterate_mainloop()
+ time.sleep(0.05)
+diff --git a/tests/test_dbus_type.py b/tests/test_dbus_type.py
+index 17f1349..25038c6 100644
+--- a/tests/test_dbus_type.py
++++ b/tests/test_dbus_type.py
+@@ -137,7 +137,8 @@ class DBusTypeTest(test.AptDaemonTestCase):
+ def test_transaction_properties(self):
+ """Test object properties."""
+ trans = core.Transaction(None, enums.ROLE_REMOVE_PACKAGES, None,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
++ sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus)
+ proxy = self.dbus.get_object(core.APTDAEMON_DBUS_INTERFACE,
+ trans.tid)
+@@ -152,7 +153,8 @@ class DBusTypeTest(test.AptDaemonTestCase):
+ def test_transaction_signals(self):
+ """Test signal emittion."""
+ trans = core.Transaction(None, enums.ROLE_COMMIT_PACKAGES, None,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
++ sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[["silly-base"],[],[],[],[],[]])
+ proxy = self.dbus.get_object("org.debian.apt", trans.tid)
+diff --git a/tests/test_unicodedecoding.py b/tests/test_unicodedecoding.py
+index a1735cb..c64107b 100644
+--- a/tests/test_unicodedecoding.py
++++ b/tests/test_unicodedecoding.py
+@@ -49,7 +49,8 @@ class TestUnicodeDecoding(AptDaemonTestCase):
+ self.start_dbus_daemon()
+ self.dbus = dbus.bus.BusConnection(self.dbus_address)
+ self.trans = Transaction(None, "role-test", None,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
++ sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus)
+
+ def test(self):
+diff --git a/tests/test_worker.py b/tests/test_worker.py
+index 46b2df8..2ac1f59 100644
+--- a/tests/test_worker.py
++++ b/tests/test_worker.py
+@@ -78,7 +78,8 @@ class WorkerTestCase(aptdaemon.test.AptDaemonTestCase):
+ self.chroot.add_repository("/does/not/exist", copy_list=False)
+ # Only update the repository from the working snippet
+ trans = Transaction(None, enums.ROLE_UPDATE_CACHE,
+- self.queue, os.getpid(), os.getuid(), sys.argv[0],
++ self.queue, os.getpid(), os.getuid(),
++ os.getgid(), sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ kwargs={"sources_list": "test.list"})
+ self.worker.simulate(trans)
+@@ -100,8 +101,8 @@ class WorkerTestCase(aptdaemon.test.AptDaemonTestCase):
+ "silly-base_0.1-0_all.deb"))
+ # Install the package
+ trans = Transaction(None, enums.ROLE_UPGRADE_SYSTEM,
+- self.queue, os.getpid(),
+- os.getuid(), sys.argv[0],
++ self.queue, os.getpid(), os.getgid(),
++ os.getuid(), os.getgid(), sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ kwargs={"safe_mode": False})
+ self.worker.simulate(trans)
+@@ -131,7 +132,7 @@ class WorkerTestCase(aptdaemon.test.AptDaemonTestCase):
+ self.chroot.add_test_repository(copy_sig=False)
+ # Install the package
+ trans = Transaction(None, enums.ROLE_INSTALL_PACKAGES, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[["silly-base"],[],[],[],[], []])
+ self.worker.simulate(trans)
+@@ -145,7 +146,7 @@ class WorkerTestCase(aptdaemon.test.AptDaemonTestCase):
+
+ # Allow installation of unauthenticated packages
+ trans = Transaction(None, enums.ROLE_INSTALL_PACKAGES, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[["silly-base"],[],[],[],[], []])
+ trans.allow_unauthenticated = True
+@@ -165,7 +166,7 @@ class WorkerTestCase(aptdaemon.test.AptDaemonTestCase):
+ self.chroot.add_test_repository()
+ # Install the package
+ trans = Transaction(None, enums.ROLE_INSTALL_PACKAGES, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[["silly-depend-base"],[],[],[],[], []])
+ self.worker.simulate(trans)
+@@ -193,7 +194,7 @@ class WorkerTestCase(aptdaemon.test.AptDaemonTestCase):
+ Architecture: all
+ Auto-Installed: 1""")
+ trans = Transaction(None, enums.ROLE_REMOVE_PACKAGES, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[[],[],["silly-depend-base"],[],[],[]])
+ trans.remove_obsoleted_depends = True
+@@ -217,7 +218,7 @@ Auto-Installed: 1""")
+ "silly-depend-base_0.1-0_all.deb"]:
+ self.chroot.install_debfile(os.path.join(REPO_PATH, pkg))
+ trans = Transaction(None, enums.ROLE_REMOVE_PACKAGES, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[[],[],["silly-base"],[],[],[]])
+ self.worker.simulate(trans)
+@@ -238,7 +239,7 @@ Auto-Installed: 1""")
+ pass
+ # Don't allow to remove essential packages
+ trans = Transaction(None, enums.ROLE_REMOVE_PACKAGES, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[[],[],["silly-essential"],[],[],[]])
+ self.worker.run(trans)
+@@ -255,7 +256,7 @@ Auto-Installed: 1""")
+ pkg = os.path.join(REPO_PATH, "silly-base_0.1-0update1_all.deb")
+ self.chroot.install_debfile(pkg)
+ trans = Transaction(None, enums.ROLE_COMMIT_PACKAGES, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[[],[],[],[],[],["silly-base=0.1-0"]])
+ self.worker.run(trans)
+@@ -272,7 +273,7 @@ Auto-Installed: 1""")
+ for pkg in ["silly-base_0.1-0_all.deb", "silly-config_0.1-0_all.deb"]:
+ self.chroot.install_debfile(os.path.join(REPO_PATH, pkg))
+ trans = Transaction(None, enums.ROLE_REMOVE_PACKAGES, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ packages=[[],[],[],["silly-config"],[],[]])
+ self.worker.run(trans)
+@@ -297,7 +298,7 @@ Auto-Installed: 1""")
+ pkg = os.path.join(
+ REPO_PATH, "silly-depend-base-lintian-broken_0.1-0_all.deb")
+ trans = Transaction(None, enums.ROLE_INSTALL_FILE, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ kwargs={"path": os.path.join(REPO_PATH, pkg),
+ "force": False})
+@@ -328,7 +329,7 @@ Auto-Installed: 1""")
+ """
+ pkg = os.path.join(REPO_PATH, "silly-base_0.1-0_all.deb")
+ trans = Transaction(None, enums.ROLE_INSTALL_FILE, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus,
+ kwargs={"path": os.path.join(REPO_PATH, pkg),
+ "force": True})
+@@ -349,7 +350,7 @@ Auto-Installed: 1""")
+ for pkg in ["silly-base_0.1-0_all.deb", "silly-broken_0.1-0_all.deb"]:
+ self.chroot.install_debfile(os.path.join(REPO_PATH, pkg), True)
+ trans = Transaction(None, enums.ROLE_FIX_BROKEN_DEPENDS, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test", bus=self.dbus)
+ self.worker.simulate(trans)
+ self.loop.run()
+@@ -390,7 +391,7 @@ Auto-Installed: 1""")
+ return license_key, license_path
+ self.chroot.add_test_repository()
+ trans = Transaction(None, enums.ROLE_ADD_LICENSE_KEY, self.queue,
+- os.getpid(), os.getuid(), sys.argv[0],
++ os.getpid(), os.getuid(), os.getgid(),
sys.argv[0],
+ "org.debian.apt.test",
+ kwargs={"pkg_name": "silly-license",
+ "json_token": "lalelu",
diff --git a/debian/patches/series b/debian/patches/series
index b359dca..a081711 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1 +1,2 @@
aptd-import-from-keyserver.patch
+CVE-2015-1323.patch
