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Vulnerability of rpm: out-of-bounds memory reading via hdrblobInit

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via hdrblobInit() of rpm, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable products: Fedora.
Severity of this weakness: 2/4.
Creation date: 30/03/2021.
Références of this bulletin: CVE-2021-20266, FEDORA-2021-662680e477, FEDORA-2021-8d52a8a999, VIGILANCE-VUL-34974.

Description of the vulnerability 

An attacker can force a read at an invalid address via hdrblobInit() of rpm, in ...
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This computer threat alert impacts software or systems such as Fedora.

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

Solutions for this threat 

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