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Vulnerability of cflow: use after free via src/parser.c

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via src/parser.c of cflow, in order to trigger a denial of service, and possibly to run code.
Impacted products: Fedora.
Severity of this bulletin: 2/4.
Creation date: 01/06/2021.
Références of this threat: CVE-2020-23856, FEDORA-2021-6ef76430d0, FEDORA-2021-e8cab459ab, VIGILANCE-VUL-35571.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via src/parser.c of cflow...
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This vulnerability announce impacts software or systems such as Fedora.

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

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this computer threat bulletin.

Solutions for this threat 

Patches for this vulnerability are not yet public.
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