SUSE-RU-2020:0830-1: moderate: Recommended update for python-Whoosh, python-paramiko, python-pyOpenSSL
sle-updates at lists.suse.com
sle-updates at lists.suse.com
Tue Mar 31 10:35:43 MDT 2020
SUSE Recommended Update: Recommended update for python-Whoosh, python-paramiko, python-pyOpenSSL
______________________________________________________________________________
Announcement ID: SUSE-RU-2020:0830-1
Rating: moderate
References: #1138748 #962291
Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP1
SUSE Linux Enterprise Server 12-SP1-LTSS
SUSE Linux Enterprise Module for Public Cloud 12
______________________________________________________________________________
An update that has two recommended fixes can now be
installed.
Description:
This update for python-Whoosh, python-paramiko, python-pyOpenSSL fixes the
following issues:
python-paramiko was updated to 2.1.3:
* Make util.log_to_file append instead of replace.
* SSHClient and Transport could cause a memory leak if there’s a
connection problem or protocol error, even if Transport.close() is
called.
* Prior support for ecdsa-sha2-nistp(384|521) algorithms didn’t fully
extend to covering host keys, preventing connection to hosts which only
offer these key types and no others. This is now fixed.
* Prefer newer ecdsa-sha2-nistp keys over RSA and DSA keys during host key
selection. This improves compatibility with OpenSSH, both in terms of
general behavior, and also re: ability to properly leverage
OpenSSH-modified known_hosts files.
* The RC4/arcfour family of ciphers has been broken since version 2.0; but
since the algorithm is now known to be completely insecure, we are
opting to remove support outright instead of fixing it.
* Move sha1 above the now-arguably-broken md5 in the list of preferred MAC
algorithms, as an incremental security improvement for users whose
target systems offer both.
* Writing encrypted/password-protected private key files was silently
broken since 2.0 due to an incorrect API call Includes a directly
related fix, namely adding the ability to read AES-256-CBC ciphered
private keys (which is now what we tend to write out as it is
Cryptography’s default private key cipher.)
* Allow any type implementing the buffer API to be used with BufferedFile,
Channel, and SFTPFile. This resolves a regression introduced in 1.13
with the Python 3 porting changes, when using types such as memoryview.
* Enhance default cipher preference order such that aes(192|256)-cbc are
preferred
over blowfish-cbc.
* SSHClient now requests the type of host key it has (e.g. from
known_hosts) and does not consider a different type to be a
“Missing†host key. This fixes a common case where an ECDSA key is
in known_hosts and the server also has an RSA host key.
update to 2.1.2:
* Fix a bug in server-mode concerning multiple interactive auth steps
* SSHClient now gives its internal Transport a handle on itself,
preventing garbage collection of the client until the session is closed.
Without this, some code which returns stream or transport objects
without the client that generated them, would result in premature
session closure when the client was GCd
* Avoid test suite exceptions on platforms lacking errno.ETIME
* weak how RSAKey.__str__ behaves so it doesn’t cause TypeError under
Python 3.
update to 2.1.1:
* A tweak to the original patch implementing gh#398 was not fully applied,
causing calls to ~paramiko.client.SSHClient.invoke_shell to fail with
AttributeError. This has been fixed.
* Fix the implementation of PKey.write_private_key_file (this method is
only publicly defined on subclasses; the fix was in the private real
implementation) so it passes the correct params to open()
* Add an optional timeout parameter to Transport.start_clienti
<paramiko.transport.Transport.start_client> (and feed it the value of
the configured connection timeout when used within SSHClient
<paramiko.client.SSHClient>.)
* Catch AssertionError thrown by Cryptography when attempting to load bad
ECDSA keys, turning it into an SSHException.
* Add a missing .closed attribute (plus ._closed because reasons) to
ProxyCommand <paramiko.proxy.ProxyCommand>
* Make the subprocess import in proxy.py lazy so users on platforms
without it (such as Google App Engine) can import Paramiko successfully
* Fix incorrect docstring/param-list for Transport.auth_gssapi_keyex
<paramiko.transport.Transport.auth_gssapi_keyex> so it matches the real
signature.
* Add an environment dict argument to Client.exec_command
update to 2.0.2:
* [Bug] #758: Apply type definitions to _winapi module from jaraco.windows
3.6.1. This should address issues on Windows platforms that often result
in errors like ArgumentError: [...] int too long to convert. Thanks to
@swohlerLL for the report and Jason R. Coombs for the patch.
* [Bug] #774: Add a _closed private attribute to Channel objects so that
they continue functioning when used as proxy sockets under Python 3
(e.g. as direct-tcpip gateways for other Paramiko connections.)
* [Bug] #673: (via #681) Fix protocol banner read errors (SSHException)
which would occasionally pop up when using ProxyCommand gatewaying.
Thanks to @Depado for the initial report and Paul Kapp for the fix.
update to 2.0.1:
* [Bug] #537: Fix a bug in BufferedPipe.set_event which could cause
deadlocks/hangs when one uses select.select against Channel objects (or
otherwise calls Channel.fileno after the channel has closed).
* [Bug] #520: (Partial fix) Fix at least one instance of race condition
driven threading hangs at end of the Python interpreter session.
(Includes a docs update as well - always make sure to .close() your
clients!)
update to 2.0.0:
* Add support for 384- and 512-bit elliptic curve groups in ECDSA key
types (aka ecdsa-sha2-nistp384 / ecdsa-sha2-nistp521).
* Due to an earlier bugfix, less-specific Host blocks' ProxyCommand values
were overriding ProxyCommand none in more-specific Host blocks. This has
been fixed in a backwards compatible manner (i.e. ProxyCommand none
continues to appear as a total lack of any proxycommand key in parsed
config structures).
* Fix a backwards incompatibility issue that cropped up in
SFTPFile.prefetch <~paramiko.sftp_file.prefetch> re: the erroneously
non-optional file_size parameter. Should only affect users who manually
call prefetch.
* Replace PyCrypto with the Python Cryptographic Authority (PyCA)
'Cryptography' library suite. This improves security, installability,
and performance; adds PyPy support; and much more.
* Fix stalled/hung SFTP downloads by cleaning up some threading lock
issues.
* Fix a Python 3 compatibility issue when handling two-factor
authentication.
* Clean up setup.py to always use setuptools, not doing so was a
historical artifact from bygone days.
* Update the module in charge of handling SSH moduli so it's consistent
with OpenSSH behavior re: prime number selection.
* Fix up ~paramiko.ssh_exception.NoValidConnectionsError so it pickles
correctly, and fix a related Python 3 compatibility issue.
* Update to jaraco.windows 3.4.1 to fix some errors related to ctypes on
Windows platforms.
* Annotate some public attributes on ~paramiko.channel.Channel such as
.closed.
* Fix logic bug in the SFTP client's callback-calling functionality;
previously there was a chance the given callback would fire twice at the
end of a transfer.
* Identify & work around a race condition in the test for handshake
timeouts, which was causing frequent test failures for a subset of
contributors as well as Travis-CI (usually, but not always, limited to
Python 3.5).
* Remove whitespace in our setup.py's install_requires as it triggers
occasional bugs in some versions of setuptools.
* Strip trailing/leading whitespace from lines when parsing SSH config
files - this brings things in line with OpenSSH behavior.
* Fix behavior of gssapi-with-mic auth requests so they fail gracefully
(allowing followup via other auth methods) instead of raising an
exception.
* Add missing file-like object methods for ~paramiko.file.BufferedFile and
~paramiko.sftp_file.SFTPFile.
update to version 1.16.0:
* Streamline use of stat when downloading SFTP files via SFTPClient.get
<paramiko.sftp_client.SFTPClient.get>; this avoids triggering bugs in
some off-spec SFTP servers such as IBM Sterling. Thanks to @muraleee for
the initial report and to Torkil Gustavsen for the patch.
* Fully enable two-factor authentication (e.g. when a server requires
AuthenticationMethods pubkey,keyboard-interactive). Thanks to
@perryjrandall for the patch and to @nevins-b and Matt Robenolt for
additional support.
* Fix 'exec' requests in server mode to use get_string instead of get_text
to avoid UnicodeDecodeError on non-UTF-8 input. Thanks to Anselm Kruis
for the patch & discussion.
* Fix line number reporting in log output regarding invalid known_hosts
line entries. Thanks to Dylan Thacker-Smith for catch & patch.
update to version 1.15.2 (bsc#962291)
* [Bug] #320: Update our win_pageant module to be Python 3 compatible
* [Bug] #429: Server-level debug message logging was overlooked during the
Python 3 compatibility update; Python 3 clients attempting to log SSH
debug packets encountered type errors. This is now fixed
* [Bug] #459: Tighten up agent connection closure behavior to avoid
spurious ResourceWarning display in some situations
* [Bug] #266: Change numbering of Transport channels to start at 0 instead
of 1 for better compatibility with OpenSSH & certain server
implementations which break on 1-indexed channels
* [Support] #419: Modernize a bunch of the codebase internals to leverage
decorators. Props to @beckjake for realizing we’re no longer
on Python 2.2 :D
* [Support] #421: Modernize threading calls to user newer API
* [Support] #422: Clean up some unused imports
* [Support] #431: Replace handrolled ssh_config parsing code with use of
the shlex module
* [Bug] #415: Fix ssh_config parsing to correctly interpret ProxyCommand
none as the lack of a proxy command, instead of as a literal command
string of "none"
* [Bug] #428: Fix an issue in BufferedFile (primarily used in the SFTP
modules) concerning incorrect behavior by readlines on files whose size
exceeds the buffer size
* [Bug] #455: Tweak packet size handling to conform better to the OpenSSH
RFCs; this helps address issues with interactive program cursors
* [Bug] #413: (also #414, #420, #454) Be significantly smarter about
polling & timing behavior when running proxy commands, to avoid
unnecessary (often 100%!) CPU usage
new upsteam version 1.15.1
* fixed from previous version: [Bug] #399: SSH agent forwarding would hang
due to incorrect values passed into the new window size arguments for
Transport
* detailed changelog available on pramiko website:
http://paramiko-www.readthedocs.org/en/latest/changelog.html
python-pyOpenSSL was updated to version 17.1.0.
Backward-incompatible changes:
* Removed the deprecated ``OpenSSL.rand.egd()`` function. Applications
should prefer ``os.urandom()`` for random number generation. `#630
<https://github.com/pyca/pyopenssl/pull/630>`_
* Removed the deprecated default ``digest`` argument to
``OpenSSL.crypto.CRL.export()``. Callers must now always pass an
explicit ``digest``. `#652 <https://github.com/pyca/pyopenssl/pull/652>`_
* Fixed a bug with ``ASN1_TIME`` casting in ``X509.set_notBefore()``,
``X509.set_notAfter()``, ``Revoked.set_rev_date()``,
``Revoked.set_nextUpdate()``, and ``Revoked.set_lastUpdate()``. You must
now pass times in the form ``YYYYMMDDhhmmssZ``. ``YYYYMMDDhhmmss+hhmm``
and ``YYYYMMDDhhmmss-hhmm`` will no longer work. `#612
<https://github.com/pyca/pyopenssl/pull/612>`_
Deprecations:
* Deprecated the legacy "Type" aliases: ``ContextType``,
``ConnectionType``, ``PKeyType``, ``X509NameType``,
``X509ExtensionType``, ``X509ReqType``, ``X509Type``,
``X509StoreType``, ``CRLType``, ``PKCS7Type``, ``PKCS12Type``,
``NetscapeSPKIType``. The names without the "Type"-suffix should be
used instead.
Changes:
* Added ``OpenSSL.crypto.X509.from_cryptography()`` and
``OpenSSL.crypto.X509.to_cryptography()`` for converting X.509
certificate to and from pyca/cryptography objects. `#640
<https://github.com/pyca/pyopenssl/pull/640>`_
* Added ``OpenSSL.crypto.X509Req.from_cryptography()``,
``OpenSSL.crypto.X509Req.to_cryptography()``,
``OpenSSL.crypto.CRL.from_cryptography()``, and
``OpenSSL.crypto.CRL.to_cryptography()`` for converting X.509 CSRs and
CRLs to and from pyca/cryptography objects. `#645
<https://github.com/pyca/pyopenssl/pull/645>`_
* Added ``OpenSSL.debug`` that allows to get an overview of used library
versions (including linked OpenSSL) and other useful runtime
information using ``python -m OpenSSL.debug``. `#620
<https://github.com/pyca/pyopenssl/pull/620>`_
* Added a fallback path to ``Context.set_default_verify_paths()`` to
accommodate the upcoming release of ``cryptography`` ``manylinux1``
wheels. `#633 <https://github.com/pyca/pyopenssl/pull/633>`_
python-Whoosh is shipped in version 2.7.4.
Patch Instructions:
To install this SUSE Recommended Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Server for SAP 12-SP1:
zypper in -t patch SUSE-SLE-SAP-12-SP1-2020-830=1
- SUSE Linux Enterprise Server 12-SP1-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP1-2020-830=1
- SUSE Linux Enterprise Module for Public Cloud 12:
zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2020-830=1
Package List:
- SUSE Linux Enterprise Server for SAP 12-SP1 (noarch):
python-pyOpenSSL-17.1.0-5.7.1
python3-pyOpenSSL-17.1.0-5.7.1
- SUSE Linux Enterprise Server 12-SP1-LTSS (noarch):
python-pyOpenSSL-17.1.0-5.7.1
python3-pyOpenSSL-17.1.0-5.7.1
- SUSE Linux Enterprise Module for Public Cloud 12 (noarch):
python-Whoosh-2.7.4-2.3.3
python-paramiko-2.1.3-9.3.1
python3-Whoosh-2.7.4-2.3.3
python3-paramiko-2.1.3-9.3.1
References:
https://bugzilla.suse.com/1138748
https://bugzilla.suse.com/962291
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