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CVE-2020-11759

Published: 14 April 2020

An issue was discovered in OpenEXR before 2.4.1. Because of integer overflows in CompositeDeepScanLine::Data::handleDeepFrameBuffer and readSampleCountForLineBlock, an attacker can write to an out-of-bounds pointer.

Notes

AuthorNote
mdeslaur
can't locate changes to readSampleCountForLineBlock, need to
check if list of commits is complete

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
openexr
Launchpad, Ubuntu, Debian
bionic
Released (2.2.0-11.1ubuntu1.2)
eoan
Released (2.2.1-4.1ubuntu1.1)
focal
Released (2.3.0-6ubuntu0.1)
trusty Does not exist

xenial
Released (2.2.0-10ubuntu2.2)
upstream Needs triage

Patches:
upstream: https://github.com/AcademySoftwareFoundation/openexr/commit/b9997d0c045fa01af3d2e46e1a74b07cc4519446
upstream: https://github.com/AcademySoftwareFoundation/openexr/commit/acad98d6d3e787f36012a3737c23c42c7f43a00f

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H