Vigil@nce - Exiv2: buffer overflow via Exiv2-Internal-PngChunk-parseTXTChunk
December 2018 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
Impacted products: Debian.
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: 22/10/2018.
DESCRIPTION OF THE VULNERABILITY
An attacker can generate a buffer overflow via
Exiv2::Internal::PngChunk::parseTXTChunk() of Exiv2, in order to
trigger a denial of service, and possibly to run code.
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