Out-of-bounds Read Affecting openexr package, versions <2.5.3-2ubuntu0.2


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.1% (43rd percentile)

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  • Snyk IDSNYK-UBUNTU2010-OPENEXR-1090278
  • published1 Apr 2021
  • disclosed31 Mar 2021

Introduced: 31 Mar 2021

CVE-2021-3477  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.10 openexr to version 2.5.3-2ubuntu0.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openexr package and not the openexr package as distributed by Ubuntu. See How to fix? for Ubuntu:20.10 relevant fixed versions and status.

There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability.

CVSS Scores

version 3.1