Vigil@nce - Exim: buffer overflow in string_vformat
December 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian, Exim, Ubuntu.
Consequences: privileged access/rights, denial of service on server, denial of service on service.
Provenance: internet client.
Confidence: confirmed by the editor (5/5).
Creation date: 30/09/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger a buffer overflow in string_vformat() in Exim, in order to trigger a denial of service, and possibly to run code.
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