Vigil@nce - libpgf: use after free via Decoder.cpp
February 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian.
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: 16/12/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can force the usage of a freed memory area via
Decoder.cpp of libpgf, in order to trigger a denial of service,
and possibly to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/libpgf-use-after-free-via-Decoder-cpp-31157