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Vigil@nce - ksh: code execution via Environment Variables Arithmetic Expressions

April 2020 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

Impacted products: Fedora, RHEL.

Severity: 2/4.

Consequences: user access/rights.

Provenance: user shell.

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

Creation date: 05/02/2020.

DESCRIPTION OF THE VULNERABILITY

An attacker can use a vulnerability via Environment Variables Arithmetic Expressions of ksh, in order to run code.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

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




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