Vigil@nce - MuPDF: use after free via Linearization
May 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian, Fedora.
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: 08/03/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker can force the usage of a freed memory area via
Linearization of MuPDF, in order to trigger a denial of service,
and possibly to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/MuPDF-use-after-free-via-Linearization-34758