Vigil@nce - pngcheck: buffer overflow via Large MNG LOOP Chunk
April 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulne...
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora.
Consequences: user access/rights, denial of service on service, denial of service on client.
Confidence: confirmed by the editor (5/5).
Creation date: 09/02/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger a buffer overflow via Large MNG LOOP Chunk of pngcheck, in order to trigger a denial of service, and possibly to run code.
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