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CVE-2019-15133

Published: 17 August 2019

In GIFLIB before 2019-02-16, a malformed GIF file triggers a divide-by-zero exception in the decoder function DGifSlurp in dgif_lib.c if the height field of the ImageSize data structure is equal to zero.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
giflib
Launchpad, Ubuntu, Debian
upstream
Released (5.1.8)
bionic
Released (5.1.4-2ubuntu0.1)
disco
Released (5.1.4-3ubuntu0.1)
trusty Does not exist

xenial
Released (5.1.4-0.3~16.04.1)
Patches:
upstream: https://sourceforge.net/p/giflib/code/ci/799eb6a3af8a3dd81e2429bf11a72a57e541f908/

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H