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This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerability-database-and-alert

SYNTHESIS OF THE VULNERABILITY

– Impacted products: Ubuntu.
– Severity: 2/4.
– Consequences: user access/rights, denial of service on service,
denial of service on client.
– Provenance: user shell.
– Confidence: confirmed by the editor (5/5).
– Creation date: 20/08/2019.

DESCRIPTION OF THE VULNERABILITY

An attacker can force the usage of a freed memory area via List
Functions of docker-credential-helpers, in order to trigger a
denial of service, and possibly to run code.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/docker-credential-helpers-use-after-free-via-List-Functions-30089