Vigil@nce - Linux kernel: privilege escalation via ptrace_link
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, Tivoli Storage Manager, Linux, RHEL, Slackware, Ubuntu.
Consequences: administrator access/rights, privileged access/rights.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 18/07/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can bypass restrictions via ptrace_link of the Linux kernel, in order to escalate his privileges.
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