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Vulnerability of Python Pikepdf: external XML entity injection via XMP Metadata Entries

Synthesis of the vulnerability 

An attacker can transmit malicious XML data via XMP Metadata Entries to Python Pikepdf, in order to read a file, scan sites, or trigger a denial of service.
Impacted products: Fedora.
Severity of this bulletin: 2/4.
Creation date: 09/04/2021.
Références of this threat: CVE-2021-29421, FEDORA-2021-4bf9909a76, FEDORA-2021-d97bc581be, VIGILANCE-VUL-35049.

Description of the vulnerability 

An attacker can transmit malicious XML data via XMP Metadata Entries to Python P...
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This computer threat note impacts software or systems such as Fedora.

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

Solutions for this threat 

Patches for this vulnerability are not yet public.
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Computer vulnerabilities tracking service 

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