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Vulnerability of Linux kernel: use after free via sctp_wait_for_sndbuf

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via sctp_wait_for_sndbuf() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted products: Linux.
Severity of this bulletin: 2/4.
Creation date: 08/06/2021.
Références of this threat: CVE-2018-25015, VIGILANCE-VUL-35643.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via sctp_wait_for_sndbuf(...
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This computer weakness alert impacts software or systems such as Linux.

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

Solutions for this threat 

Patches for this vulnerability are not yet public.
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