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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.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Perl-Core-memory-corruption-via-Regular-Expression-S-study-chunk-32368


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