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Vulnerability of Python typed_ast: out-of-bounds memory reading via ast_for_arguments

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via ast_for_arguments of Python typed_ast, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable systems: Fedora.
Severity of this threat: 2/4.
Creation date: 16/03/2020.
Références of this weakness: CVE-2019-19275, FEDORA-2020-9b3dabc21c, VIGILANCE-VUL-31790.

Description of the vulnerability 

An attacker can force a read at an invalid address via ast_for_arguments of Pyth...
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This cybersecurity threat impacts software or systems such as Fedora.

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

Solutions for this threat 

Fixes for this vulnerability are not yet public.
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