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Vulnerability of CUPS: out-of-bounds memory reading via Extension Field

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via Extension Field of CUPS, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable software: openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this announce: 2/4.
Creation date: 02/02/2021.
Références of this computer vulnerability: CVE-2020-10001, openSUSE-SU-2021:0253-1, SUSE-SU-2021:0285-1, SUSE-SU-2021:0286-1, VIGILANCE-VUL-34465.

Description of the vulnerability 

An attacker can force a read at an invalid address via Extension Field of CUPS, ...
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This cybersecurity alert impacts software or systems such as openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

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

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

An attacker with a expert ability can exploit this security weakness.

Solutions for this threat 

Workarounds for this vulnerability are not yet public.
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