UBUNTU-CVE-2021-27291

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Source

https://ubuntu.com/security/CVE-2021-27291

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27291.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-27291

Related

Published

2021-03-17T13:15:00Z

Modified

2024-10-15T14:08:04Z

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

Summary

[none]

Details

In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.

References

Affected packages

Ubuntu:Pro:14.04:LTS / pygments

Package

Name: pygments
Purl: pkg:deb/ubuntu/pygments?arch=src?distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.6+dfsg-1ubuntu1.1+esm1

Affected versions

1.*

1.6+dfsg-1

1.6+dfsg-1build1

1.6+dfsg-1ubuntu1

1.6+dfsg-1ubuntu1.1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.6+dfsg-1ubuntu1.1+esm1",
            "binary_name": "python-pygments"
        },
        {
            "binary_version": "1.6+dfsg-1ubuntu1.1+esm1",
            "binary_name": "python3-pygments"
        }
    ]
}

Ubuntu:16.04:LTS / pygments

Package

Name: pygments
Purl: pkg:deb/ubuntu/pygments?arch=src?distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.1+dfsg-1ubuntu0.2

Affected versions

2.*

2.0.1+dfsg-1.1svn1

2.0.1+dfsg-1.1ubuntu1

2.1+dfsg-1

2.1+dfsg-1ubuntu0.1

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.1+dfsg-1ubuntu0.2",
            "binary_name": "python-pygments"
        },
        {
            "binary_version": "2.1+dfsg-1ubuntu0.2",
            "binary_name": "python-pygments-doc"
        },
        {
            "binary_version": "2.1+dfsg-1ubuntu0.2",
            "binary_name": "python3-pygments"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / eric

Package

Name: eric
Purl: pkg:deb/ubuntu/eric?arch=src?distro=esm-apps/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

6.*

6.0.8-1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / pygments

Package

Name: pygments
Purl: pkg:deb/ubuntu/pygments?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.2.0+dfsg-1ubuntu0.2

Affected versions

2.*

2.2.0+dfsg-1

2.2.0+dfsg-1ubuntu0.1

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.2.0+dfsg-1ubuntu0.2",
            "binary_name": "python-pygments"
        },
        {
            "binary_version": "2.2.0+dfsg-1ubuntu0.2",
            "binary_name": "python-pygments-doc"
        },
        {
            "binary_version": "2.2.0+dfsg-1ubuntu0.2",
            "binary_name": "python3-pygments"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / eric

Package

Name: eric
Purl: pkg:deb/ubuntu/eric?arch=src?distro=esm-apps/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

17.*

17.08-1

17.11.1-1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / eric

Package

Name: eric
Purl: pkg:deb/ubuntu/eric?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

19.*

19.02.1+ds1-1

19.8+ds1-1

19.12+ds1-1

20.*

20.1+ds1-1

20.2+ds1-1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / pygments

Package

Name: pygments
Purl: pkg:deb/ubuntu/pygments?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.3.1+dfsg-1ubuntu2.2

Affected versions

2.*

2.3.1+dfsg-1ubuntu1

2.3.1+dfsg-1ubuntu2

2.3.1+dfsg-1ubuntu2.1

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.3.1+dfsg-1ubuntu2.2",
            "binary_name": "python-pygments"
        },
        {
            "binary_version": "2.3.1+dfsg-1ubuntu2.2",
            "binary_name": "python-pygments-doc"
        },
        {
            "binary_version": "2.3.1+dfsg-1ubuntu2.2",
            "binary_name": "python3-pygments"
        }
    ]
}

Ubuntu:22.04:LTS / eric

Package

Name: eric
Purl: pkg:deb/ubuntu/eric?arch=src?distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

21.*

21.1+ds1-1

21.1+ds1-2

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / eric

Package

Name: eric
Purl: pkg:deb/ubuntu/eric?arch=src?distro=oracular

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

23.*

23.2+ds1-2ubuntu1

24.*

24.3+ds1-1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / eric

Package

Name: eric
Purl: pkg:deb/ubuntu/eric?arch=src?distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

23.*

23.2+ds1-1

23.2+ds1-2

23.2+ds1-2ubuntu1

Ecosystem specific

{
    "ubuntu_priority": "medium"
}