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

SYNTHESIS OF THE VULNERABILITY

Impacted products: SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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: 08/11/2018.

DESCRIPTION OF THE VULNERABILITY

An attacker can force the usage of a freed memory area via X509 of
pyopenssl, in order to trigger a denial of service, and possibly
to run code.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/pyopenssl-use-after-free-via-X509-27739