Vigil@nce - Python: buffer overflow via ctypes PyCArg_repr
March 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora, openSUSE Leap, Python, SUSE Linux
Enterprise Desktop, SLES, Ubuntu.
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: 19/01/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger a buffer overflow via ctypes PyCArg_repr()
of Python, in order to trigger a denial of service, and possibly
to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Python-buffer-overflow-via-ctypes-PyCArg-repr-34369