Vigil@nce - GNU gettext: use after free via default_add_message
January 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora, Ubuntu, WindRiver Linux.
Consequences: user access/rights, denial of service on service, denial of service on client.
Confidence: confirmed by the editor (5/5).
Creation date: 12/11/2018.
DESCRIPTION OF THE VULNERABILITY
An attacker can force the usage of a freed memory area via default_add_message() of GNU gettext, in order to trigger a denial of service, and possibly to run code.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN