Vigil@nce - GNU Libextractor: out-of-bounds memory reading via EXTRACTOR_dvi_extract_method
November 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerability-database-and-alert
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian, Fedora.
Severity: 2/4.
Consequences: data reading, denial of service on service, denial
of service on client.
Provenance: document.
Confidence: confirmed by the editor (5/5).
Creation date: 02/09/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a read at an invalid address via
EXTRACTOR_dvi_extract_method() of GNU Libextractor, in order to
trigger a denial of service, or to obtain sensitive information.
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