Vigil@nce - Linux kernel: denial of service via xfs_setattr_nonsize
September 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: Fedora, Linux.
– Severity: 1/4.
– Consequences: denial of service on server, denial of service on
service.
– Provenance: user shell.
– Confidence: confirmed by the editor (5/5).
– Creation date: 26/08/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger a fatal error via xfs_setattr_nonsize() of
the Linux kernel, in order to trigger a denial of service.
ACCESS TO THE FULL VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-xfs-setattr-nonsize-30164