Vigil@nce - Perl Core: memory corruption via Regular Expression S_study_chunk
August 2020 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulnerability
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora, OpenBSD, openSUSE Leap, Perl Core, SUSE
Linux Enterprise Desktop, SLES.
Severity: 2/4.
Consequences: user access/rights, denial of service on service,
denial of service on client.
Provenance: document.
Confidence: confirmed by the editor (5/5).
Creation date: 02/06/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger a memory corruption via Regular Expression
S_study_chunk() of Perl Core, in order to trigger a denial of
service, and possibly to run code.
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