Vigil@nce - LibTIFF: NULL pointer dereference via TIFFWriteDirectoryTagTransfer
April 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, LibTIFF, openSUSE Leap, SLES, Ubuntu.
Severity: 2/4.
Consequences: denial of service on service, denial of service on
client.
Provenance: document.
Confidence: confirmed by the editor (5/5).
Creation date: 11/02/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a NULL pointer to be dereferenced via
TIFFWriteDirectoryTagTransfer() of LibTIFF, in order to trigger a
denial of service.
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