ESB-2021.2191 – [Win][UNIX/Linux][SUSE] python-PyJWT: Reduced security – Remote/unauthenticated

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AUSCERT External Security Bulletin Redistribution

ESB-2021.2191
Security update for python-PyJWT
21 June 2021

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AusCERT Security Bulletin Summary
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Product: python-PyJWT
Publisher: SUSE
Operating System: SUSE
Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Reduced Security — Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-12880

Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20212010-1

Comment: This advisory references vulnerabilities in products which run on
platforms other than SUSE. It is recommended that administrators
running python-PyJWT check for an updated version of the software
for their operating system.

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SUSE Security Update: Security update for python-PyJWT

______________________________________________________________________________

Announcement ID: SUSE-SU-2021:2010-1
Rating: moderate
References: #1186173
Cross-References: CVE-2017-12880
Affected Products:
SUSE OpenStack Cloud 7
SUSE Linux Enterprise Module for Public Cloud 12
______________________________________________________________________________

An update that fixes one vulnerability is now available.

Description:

This update for python-PyJWT fixes the following issues:
python-JWT was updated to 1.5.3. (bsc#1186173)
update to version 1.5.3:
* Changed
+ Increase required version of the cryptography package to >=1.4.0.
* Fixed
+ Remove uses of deprecated functions from the cryptography package. + Warn
about missing algorithms param to decode() only when verify param is True #281

update to version 1.5.2:

o Ensure correct arguments order in decode super call [7c1e61d][7c1e61d]
o Change optparse for argparse. [#238][238]
o Guard against PKCS1 PEM encododed public keys [#277][277]
o Add deprecation warning when decoding without specifying `algorithms` [#
277][277]
o Improve deprecation messages [#270][270]
o PyJWT.decode: move verify param into options [#271][271]
o Support for Python 3.6 [#262][262]
o Expose jwt.InvalidAlgorithmError [#264][264]
o Add support for ECDSA public keys in RFC 4253 (OpenSSH) format [#244][244]
o Renamed commandline script `jwt` to `jwt-cli` to avoid issues with the
script clobbering the `jwt` module in some circumstances. [#187][187]
o Better error messages when using an algorithm that requires the
cryptography package, but it isn’t available [#230][230]
o Tokens with future ‘iat’ values are no longer rejected [#190][190]
o Non-numeric ‘iat’ values now raise InvalidIssuedAtError instead of
DecodeError
o Remove rejection of future ‘iat’ claims [#252][252]
o Add back ‘ES512’ for backward compatibility (for now) [#225][225]
o Fix incorrectly named ECDSA algorithm [#219][219]
o Fix rpm build [#196][196]
o Add JWK support for HMAC and RSA keys [#202][202]

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or “zypper patch”.
Alternatively you can run the command listed for your product:

o SUSE OpenStack Cloud 7:
zypper in -t patch SUSE-OpenStack-Cloud-7-2021-2010=1
o SUSE Linux Enterprise Module for Public Cloud 12:
zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2021-2010=1

Package List:

o SUSE OpenStack Cloud 7 (noarch):
python-PyJWT-1.5.3-3.13.1
o SUSE Linux Enterprise Module for Public Cloud 12 (noarch):
python-PyJWT-1.5.3-3.13.1
python3-PyJWT-1.5.3-3.13.1

References:

o https://www.suse.com/security/cve/CVE-2017-12880.html
o https://bugzilla.suse.com/1186173

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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT’s members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation’s
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author’s website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
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Previous advisories and external security bulletins can be retrieved from:

https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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