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Vulnerability of FreeBSD: privilege escalation via SMAP Bypass

Synthesis of the vulnerability 

An attacker can bypass restrictions via SMAP Bypass of FreeBSD, in order to escalate his privileges.
Vulnerable systems: FreeBSD.
Severity of this threat: 1/4.
Creation date: 27/05/2021.
Références of this weakness: CVE-2021-29628, FreeBSD-SA-21:11.smap, VIGILANCE-VUL-35552.

Description of the vulnerability 

An attacker can bypass restrictions via SMAP Bypass of FreeBSD, in order to escalate his privileges.
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This vulnerability alert impacts software or systems such as FreeBSD.

Our Vigil@nce team determined that the severity of this computer weakness alert 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 computer vulnerability.

Solutions for this threat 

FreeBSD: patch for SMAP Bypass.
A patch is available:
  https://security.FreeBSD.org/patches/SA-21:11/smap.patch
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