UBUNTU-CVE-2021-3476

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Source
https://ubuntu.com/security/CVE-2021-3476
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3476.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-3476
Upstream
Downstream
Related
Published
2021-03-30T18:15:00Z
Modified
2025-09-08T16:46:44Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.

References

Affected packages

Ubuntu:16.04:LTS / openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@2.2.0-10ubuntu2.6?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.0-10ubuntu2.6

Affected versions

2.*

2.2.0-1ubuntu3
2.2.0-7ubuntu1
2.2.0-9ubuntu1
2.2.0-10ubuntu2
2.2.0-10ubuntu2.1
2.2.0-10ubuntu2.2
2.2.0-10ubuntu2.3
2.2.0-10ubuntu2.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.2.0-10ubuntu2.6",
            "binary_name": "libopenexr-dev"
        },
        {
            "binary_version": "2.2.0-10ubuntu2.6",
            "binary_name": "libopenexr22"
        },
        {
            "binary_version": "2.2.0-10ubuntu2.6",
            "binary_name": "openexr"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@2.2.0-11.1ubuntu1.6?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.0-11.1ubuntu1.6

Affected versions

2.*

2.2.0-11ubuntu1
2.2.0-11.1ubuntu1
2.2.0-11.1ubuntu1.1
2.2.0-11.1ubuntu1.2
2.2.0-11.1ubuntu1.3
2.2.0-11.1ubuntu1.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.2.0-11.1ubuntu1.6",
            "binary_name": "libopenexr-dev"
        },
        {
            "binary_version": "2.2.0-11.1ubuntu1.6",
            "binary_name": "libopenexr22"
        },
        {
            "binary_version": "2.2.0-11.1ubuntu1.6",
            "binary_name": "openexr"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@2.3.0-6ubuntu0.5?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.3.0-6ubuntu0.5

Affected versions

2.*

2.2.1-4.1ubuntu1
2.3.0-6
2.3.0-6build1
2.3.0-6ubuntu0.1
2.3.0-6ubuntu0.2
2.3.0-6ubuntu0.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.3.0-6ubuntu0.5",
            "binary_name": "libopenexr-dev"
        },
        {
            "binary_version": "2.3.0-6ubuntu0.5",
            "binary_name": "libopenexr24"
        },
        {
            "binary_version": "2.3.0-6ubuntu0.5",
            "binary_name": "openexr"
        }
    ],
    "availability": "No subscription required"
}