Vigil@nce - Linux kernel: NULL pointer dereference via sock_close/sockfs_setattr
June 2018 by Vigil@nce
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SYNTHESIS OF THE VULNERABILITY
An attacker can force a NULL pointer to be dereferenced via
sock_close/sockfs_setattr of the Linux kernel, in order to trigger
a denial of service.
– Impacted products: Fedora, Linux.
– Severity: 1/4.
– Creation date: 13/06/2018.
DESCRIPTION OF THE VULNERABILITY
The Noyau Linux product offers a web service.
However, it does not check if a pointer is NULL, before using it.
An attacker can therefore force a NULL pointer to be dereferenced
via sock_close/sockfs_setattr of the Linux kernel, in order to
trigger a denial of service.
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