News
Vigil@nce - Perl YAML-LibYAML: privilege escalation via Unset Load Blessed
September 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability
SYNTHESIS OF THE VULNERABILITY
Impacted products: openSUSE Leap, Perl Module not comprehensive,
SLES.
Severity: 2/4.
Consequences: user access/rights, data reading, data
creation/edition.
Provenance: document.
Confidence: confirmed by the editor (5/5).
Creation date: 24/07/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can bypass restrictions via Unset Load Blessed of Perl
YAML::LibYAML, in order to escalate his privileges.
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