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Vulnerability of Linux kernel: privilege escalation via fastrpc_internal_invoke

Synthesis of the vulnerability 

An attacker can bypass restrictions via fastrpc_internal_invoke() of the Linux kernel, in order to escalate his privileges.
Vulnerable products: Fedora, Linux, openSUSE Leap, SLES, Ubuntu.
Severity of this weakness: 2/4.
Creation date: 16/03/2021.
Références of this bulletin: CERTFR-2021-AVI-264, CERTFR-2021-AVI-265, CERTFR-2021-AVI-278, CERTFR-2021-AVI-284, CVE-2021-28375, FEDORA-2021-14f6642aa6, FEDORA-2021-bb755ed5e3, openSUSE-SU-2021:0532-1, SUSE-SU-2021:1177-1, SUSE-SU-2021:1211-1, SUSE-SU-2021:1238-1, USN-4911-1, USN-4945-1, USN-4947-1, USN-4949-1, VIGILANCE-VUL-34854.

Description of the vulnerability 

An attacker can bypass restrictions via fastrpc_internal_invoke() of the Linux k...
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This weakness note impacts software or systems such as Fedora, Linux, openSUSE Leap, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this threat note is medium.

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 computer weakness.

Solutions for this threat 

This vulnerability fix will be public soon.
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