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Synthesis of the vulnerability
An attacker can generate a fatal error via fdatasync() on the Linux kernel, in order to trigger a denial of service.
Severity of this announce: 1/4.
Creation date: 14/10/2016.
Références of this computer vulnerability: CVE-2016-8660, VIGILANCE-VUL-20869.
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Description of the vulnerability
An attacker can generate a fatal error via fdatasync() on the Linux kernel, in order to trigger a denial of service.
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This cybersecurity alert impacts software or systems such as Linux.
Our Vigil@nce team determined that the severity of this weakness is low.
The trust level is of type confirmed by the editor, with an origin of user shell.
An attacker with a expert ability can exploit this security weakness.
Solutions for this threat
Linux kernel: workaround for fdatasync.
A workaround is to remove the following patch:
fc0561cefc04e7803c0f6501ca4f310a502f65b8
xfs: optimise away log forces on timestamp updates for fdatasync
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