Vigil@nce - Linux kernel: privilege escalation via signal
May 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Linux.
Severity: 1/4.
Consequences: administrator access/rights, privileged
access/rights.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 13/05/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can bypass restrictions on the kill system call of the
Linux kernel, in order to escalate his privileges.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-kernel-privilege-escalation-via-signal-32261