UBUNTU-CVE-2026-27622

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Source
https://ubuntu.com/security/CVE-2026-27622
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-27622
Upstream
Published
2026-03-03T23:15:00Z
Modified
2026-03-09T12:30:29.143524Z
Severity
  • 8.4 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In CompositeDeepScanLine::readPixels, per-pixel totals are accumulated in vector<unsigned int> totalsizes for attacker-controlled large counts across many parts, totalsizes[ptr] wraps modulo 2^32. overallsamplecount is then derived from wrapped totals and used in samples[channel].resize(overallsamplecount). Decode pointer setup/consumption proceeds with true sample counts, and write operations in core unpack (genericunpackdeep_pointers) overrun the undersized composite sample buffer. This vulnerability is fixed in v3.2.6, v3.3.8, and v3.4.6.

References

Affected packages

Ubuntu:18.04:LTS
openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@2.2.0-11.1ubuntu1.9?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
2.2.0-11.1ubuntu1.6
2.2.0-11.1ubuntu1.7
2.2.0-11.1ubuntu1.8
2.2.0-11.1ubuntu1.9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenexr-dev",
            "binary_version": "2.2.0-11.1ubuntu1.9"
        },
        {
            "binary_name": "libopenexr22",
            "binary_version": "2.2.0-11.1ubuntu1.9"
        },
        {
            "binary_name": "openexr",
            "binary_version": "2.2.0-11.1ubuntu1.9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json"
Ubuntu:24.04:LTS
openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@3.1.5-5.1build3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.5-5.1
3.1.5-5.1build1
3.1.5-5.1build2
3.1.5-5.1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenexr-3-1-30",
            "binary_version": "3.1.5-5.1build3"
        },
        {
            "binary_name": "libopenexr-dev",
            "binary_version": "3.1.5-5.1build3"
        },
        {
            "binary_name": "openexr",
            "binary_version": "3.1.5-5.1build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json"
Ubuntu:25.10
openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@3.1.13-2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.13-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenexr-3-1-30",
            "binary_version": "3.1.13-2"
        },
        {
            "binary_name": "libopenexr-dev",
            "binary_version": "3.1.13-2"
        },
        {
            "binary_name": "openexr",
            "binary_version": "3.1.13-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json"
Ubuntu:Pro:16.04:LTS
openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@2.2.0-10ubuntu2.6+esm3?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
2.2.0-10ubuntu2.6
2.2.0-10ubuntu2.6+esm1
2.2.0-10ubuntu2.6+esm2
2.2.0-10ubuntu2.6+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenexr-dev",
            "binary_version": "2.2.0-10ubuntu2.6+esm3"
        },
        {
            "binary_name": "libopenexr22",
            "binary_version": "2.2.0-10ubuntu2.6+esm3"
        },
        {
            "binary_name": "openexr",
            "binary_version": "2.2.0-10ubuntu2.6+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json"
Ubuntu:Pro:20.04:LTS
openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@2.3.0-6ubuntu0.5+esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
2.3.0-6ubuntu0.5
2.3.0-6ubuntu0.5+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenexr-dev",
            "binary_version": "2.3.0-6ubuntu0.5+esm1"
        },
        {
            "binary_name": "libopenexr24",
            "binary_version": "2.3.0-6ubuntu0.5+esm1"
        },
        {
            "binary_name": "openexr",
            "binary_version": "2.3.0-6ubuntu0.5+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json"
Ubuntu:Pro:22.04:LTS
openexr

Package

Name
openexr
Purl
pkg:deb/ubuntu/openexr@2.5.7-1ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.4-2
2.5.7-1
2.5.7-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libopenexr-dev",
            "binary_version": "2.5.7-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libopenexr25",
            "binary_version": "2.5.7-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "openexr",
            "binary_version": "2.5.7-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27622.json"