漏洞类别：Ubuntu
漏洞等级： 
漏洞信息
It was discovered that a vulnerability in PyJWT doesn't check invalid_strings properly for some public keys.
漏洞危害
A remote attacker could take advantage of a key confusion to craft JWTs from scratch.
解决方案
Refer to Ubuntu advisory USN-3407-1 for affected packages and patching details, or update with your package manager.
Patch:
Following are links for downloading patches to fix the vulnerabilities:
USN-3407-1: 16.04 (Xenial) on src (python-jwt)
USN-3407-1: 16.04 (Xenial) on src (python3-jwt)
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