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Vigil@nce - OpenSC: out-of-bounds memory reading via asn1_decode_entry

November 2019 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

Impacted products: Debian.

Severity: 2/4.

Consequences: data reading, denial of service on service, denial
of service on client.

Provenance: document.

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

Creation date: 12/09/2019.

DESCRIPTION OF THE VULNERABILITY

An attacker can force a read at an invalid address via
asn1_decode_entry() of OpenSC, in order to trigger a denial of
service, or to obtain sensitive information.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/OpenSC-out-of-bounds-memory-reading-via-asn1-decode-entry-30312


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