UBUNTU-CVE-2021-27921

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Source
https://ubuntu.com/security/CVE-2021-27921
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27921.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-27921
Upstream
Downstream
Related
Published
2021-03-03T09:15:00Z
Modified
2025-09-08T16:47:02Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for a BLP container, and thus an attempted memory allocation can be very large.

References

Affected packages

Ubuntu:18.04:LTS / pillow

Package

Name
pillow
Purl
pkg:deb/ubuntu/pillow@5.1.0-1ubuntu0.5?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.1.0-1ubuntu0.5

Affected versions

4.*

4.1.1-3build2
4.3.0-2ubuntu1

5.*

5.0.0-1
5.1.0-1
5.1.0-1ubuntu0.2
5.1.0-1ubuntu0.3
5.1.0-1ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.1.0-1ubuntu0.5",
            "binary_name": "python-pil"
        },
        {
            "binary_version": "5.1.0-1ubuntu0.5",
            "binary_name": "python-pil.imagetk"
        },
        {
            "binary_version": "5.1.0-1ubuntu0.5",
            "binary_name": "python3-pil"
        },
        {
            "binary_version": "5.1.0-1ubuntu0.5",
            "binary_name": "python3-pil.imagetk"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / pillow

Package

Name
pillow
Purl
pkg:deb/ubuntu/pillow@7.0.0-4ubuntu0.3?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.0.0-4ubuntu0.3

Affected versions

6.*

6.1.0-1
6.1.0-1build1
6.2.1-2

7.*

7.0.0-4
7.0.0-4build1
7.0.0-4ubuntu0.1
7.0.0-4ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.0.0-4ubuntu0.3",
            "binary_name": "python3-pil"
        },
        {
            "binary_version": "7.0.0-4ubuntu0.3",
            "binary_name": "python3-pil.imagetk"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:20.04:LTS / pillow-python2

Package

Name
pillow-python2
Purl
pkg:deb/ubuntu/pillow-python2@6.2.1-3ubuntu0.1~esm2?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

6.*

6.2.1-3~build1
6.2.1-3
6.2.1-3ubuntu0.1~esm1
6.2.1-3ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "6.2.1-3ubuntu0.1~esm2",
            "binary_name": "python-pil"
        },
        {
            "binary_version": "6.2.1-3ubuntu0.1~esm2",
            "binary_name": "python-pil.imagetk"
        }
    ]
}