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Vulnerability of Linux kernel: use after free via DCCP CCID

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via DCCP CCID of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Vulnerable products: Linux, Ubuntu.
Severity of this weakness: 2/4.
Creation date: 13/10/2020.
Références of this bulletin: CERTFR-2020-AVI-637, CVE-2020-16119, USN-4576-1, USN-4577-1, USN-4578-1, USN-4579-1, USN-4580-1, VIGILANCE-VUL-33552.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via DCCP CCID of the Linu...
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This threat bulletin impacts software or systems such as Linux, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat bulletin 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 threat.

Solutions for this threat 

Solutions, fixes, patches and workarounds for this vulnerability are not yet public.
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