Ubuntu Security Notice USN-5526-2 ≈ Packet Storm

Home ^[1] Files ^[2] News ^[3] &[SERVICES_TAB] Contact ^[4] Add New ^[5]

Ubuntu Security Notice USN-5526-2^[6]: Authored by Ubuntu ^[7] | Site security.ubuntu.com ^[8]; Ubuntu Security Notice 5526-2 - USN-5526-1 fixed vulnerabilities in PyJWT. Unfortunately this caused a regression by incrementing the internal package version number on Ubuntu 22.04 LTS. This update fixes the problem. Aapo Oksman discovered that PyJWT incorrectly handled signatures constructed from SSH public keys. A remote attacker could use this to forge a JWT signature.; systems | linux ^[9], ubuntu ^[10]; SHA-256 | 8c41a2693d407eefe7e13b7defbcf414474f7e1b4eed38adbde82f77f010d590; Download ^[11] | Favorite ^[12] | View ^[13]

        =========================================================================
Ubuntu Security Notice USN-5526-2
August 17, 2022
pyjwt regression
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
Summary:
USN-5526-1 introduced a regression in PyJWT.
Software Description:
- pyjwt: Python 3 implementation of JSON Web Token
Details:
USN-5526-1 fixed vulnerabilities in PyJWT. Unfortunately this caused a
regression by incrementing the internal package version number on Ubuntu
22.04 LTS.  This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Aapo Oksman discovered that PyJWT incorrectly handled signatures
constructed from SSH public keys. A remote attacker could use this to forge
a JWT signature.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
python3-jwt                     2.3.0-1ubuntu0.2
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5526-2
https://ubuntu.com/security/notices/USN-5526-1
https://launchpad.net/bugs/1986487
Package Information:
https://launchpad.net/ubuntu/+source/pyjwt/2.3.0-1ubuntu0.2