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.
Severity: 2/4.
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.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Exim-buffer-overflow-in-string-vformat-30470