Vigil@nce - Oniguruma: use after free via onig_new_deluxe
September 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer...
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian, Fedora, PHP, Ubuntu.
Consequences: user access/rights, denial of service on service, denial of service on client.
Confidence: confirmed by the editor (5/5).
Creation date: 17/07/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can force the usage of a freed memory area via onig_new_deluxe() of Oniguruma, in order to trigger a denial of service, and possibly to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN