News
Vigil@nce - Linux kernel: file corruption via ext4 Punch Hole
May 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
A local attacker can manipulate data on ext4 on the Linux kernel,
in order to alter a file.
Impacted products: Fedora, Linux.
Severity: 1/4.
Creation date: 20/04/2016.
DESCRIPTION OF THE VULNERABILITY
The Linux kernel uses the ext4 filesystem.
However, when it reassembles file fragments, a computation error
leads to file corruptions.
A local attacker can therefore manipulate data on ext4 on the
Linux kernel, in order to alter a file.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-kernel-file-corruption-via-ext4-Punch-Hole-19413
