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Vigil@nce - Python Cryptography: integer overflow via Multi-GB Values Symmetrically Encryption

April 2021 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer...

SYNTHESIS OF THE VULNERABILITY

Impacted products: Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Severity: 2/4.

Consequences: user access/rights, denial of service on service, denial of service on client.

Provenance: document.

Confidence: confirmed by the editor (5/5).

Creation date: 12/02/2021.

DESCRIPTION OF THE VULNERABILITY

An attacker can trigger an integer overflow via Multi-GB Values Symmetrically Encryption of Python Cryptography, in order to trigger a denial of service, and possibly to run code.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/...




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