Vigil@nce - OpenSC: use after free via sc_pkcs15_decode_prkdf_entry
March 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora.
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: 27/01/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can force the usage of a freed memory area via
sc_pkcs15_decode_prkdf_entry() of OpenSC, in order to trigger a
denial of service, and possibly to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/OpenSC-use-after-free-via-sc-pkcs15-decode-prkdf-entry-31434