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PYSEC-2016-4

Quick fix

PYSEC-2016-4 — jwcrypto: upgrade to the fixed version with the command below.

pip install --upgrade 'jwcrypto>=eb5be5bd94c8cae1d7f3ba9801377084d8e5a7ba'

Details

The _Rsa15 class in the RSA 1.5 algorithm implementation in jwa.py in jwcrypto before 0.3.2 lacks the Random Filling protection mechanism, which makes it easier for remote attackers to obtain cleartext data via a Million Message Attack (MMA).

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/jwcrypto

Introduced in: 0Fixed in: eb5be5bd94c8cae1d7f3ba9801377084d8e5a7ba

Fixpip install --upgrade 'jwcrypto>=eb5be5bd94c8cae1d7f3ba9801377084d8e5a7ba'

References

https://github.com/latchset/jwcrypto/commit/eb5be5bd94c8cae1d7f3ba9801377084d8e5a7ba[FIX]
https://github.com/latchset/jwcrypto/issues/65[REPORT]
https://github.com/latchset/jwcrypto/pull/66[WEB]
https://github.com/latchset/jwcrypto/releases/tag/v0.3.2[WEB]
http://www.securityfocus.com/bid/92729[WEB]
https://github.com/advisories/GHSA-wg33-x934-3ghh[ADVISORY]