Vigil@nce - pyopenssl: use after free via X509
January 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
Impacted products: SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Consequences: user access/rights, denial of service on service, denial of service on client.
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.
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