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.
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