UBUNTU-CVE-2021-36978

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Source
https://ubuntu.com/security/CVE-2021-36978
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36978.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-36978
Upstream
Downstream
Related
Published
2021-07-20T07:15:00Z
Modified
2025-07-16T07:42:59.333262Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

QPDF 9.x through 9.1.1 and 10.x through 10.0.4 has a heap-based buffer overflow in PlASCII85Decoder::write (called from PlAESPDF::flush and PlAES_PDF::finish) when a certain downstream write fails.

References

Affected packages

Ubuntu:Pro:16.04:LTS / qpdf

Package

Name
qpdf
Purl
pkg:deb/ubuntu/qpdf@8.0.2-3~16.04.1+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.0.2-3~16.04.1+esm1

Affected versions

5.*

5.1.3-2
5.1.3-3
5.2.0-1
5.2.0-2

6.*

6.0.0-2

8.*

8.0.2-3~16.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libqpdf-dev",
            "binary_version": "8.0.2-3~16.04.1+esm1"
        },
        {
            "binary_name": "libqpdf21",
            "binary_version": "8.0.2-3~16.04.1+esm1"
        },
        {
            "binary_name": "libqpdf21-dbgsym",
            "binary_version": "8.0.2-3~16.04.1+esm1"
        },
        {
            "binary_name": "qpdf",
            "binary_version": "8.0.2-3~16.04.1+esm1"
        },
        {
            "binary_name": "qpdf-dbgsym",
            "binary_version": "8.0.2-3~16.04.1+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:18.04:LTS / qpdf

Package

Name
qpdf
Purl
pkg:deb/ubuntu/qpdf@8.0.2-3ubuntu0.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.0.2-3ubuntu0.1

Affected versions

7.*

7.0.0-1
7.1.0-1
7.1.1-1

8.*

8.0.0-1
8.0.1-1
8.0.2-1
8.0.2-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libqpdf-dev",
            "binary_version": "8.0.2-3ubuntu0.1"
        },
        {
            "binary_name": "libqpdf21",
            "binary_version": "8.0.2-3ubuntu0.1"
        },
        {
            "binary_name": "libqpdf21-dbgsym",
            "binary_version": "8.0.2-3ubuntu0.1"
        },
        {
            "binary_name": "qpdf",
            "binary_version": "8.0.2-3ubuntu0.1"
        },
        {
            "binary_name": "qpdf-dbgsym",
            "binary_version": "8.0.2-3ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / qpdf

Package

Name
qpdf
Purl
pkg:deb/ubuntu/qpdf@9.1.1-1ubuntu0.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.1.1-1ubuntu0.1

Affected versions

8.*

8.4.2-1

9.*

9.0.2-1
9.1.0-1
9.1.1-1
9.1.1-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libqpdf-dev",
            "binary_version": "9.1.1-1ubuntu0.1"
        },
        {
            "binary_name": "libqpdf26",
            "binary_version": "9.1.1-1ubuntu0.1"
        },
        {
            "binary_name": "libqpdf26-dbgsym",
            "binary_version": "9.1.1-1ubuntu0.1"
        },
        {
            "binary_name": "qpdf",
            "binary_version": "9.1.1-1ubuntu0.1"
        },
        {
            "binary_name": "qpdf-dbgsym",
            "binary_version": "9.1.1-1ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}