Vigil@nce - Linux kernel: use after free via aio_poll_wake
May 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerability-database-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: Linux.
Severity: 2/4.
Consequences: administrator access/rights, denial of service on
server, denial of service on service.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 28/03/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can force the usage of a freed memory area via
aio_poll_wake() of the Linux kernel, in order to trigger a denial
of service, and possibly to run code.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-kernel-use-after-free-via-aio-poll-wake-28887