UBUNTU-CVE-2024-8508

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Source

https://ubuntu.com/security/CVE-2024-8508

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-8508.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2024-8508

Related

Published

2024-10-03T17:15:00Z

Modified

2024-11-29T16:30:13Z

Summary

[none]

Details

NLnet Labs Unbound up to and including version 1.21.0 contains a vulnerability when handling replies with very large RRsets that it needs to perform name compression for. Malicious upstreams responses with very large RRsets can cause Unbound to spend a considerable time applying name compression to downstream replies. This can lead to degraded performance and eventually denial of service in well orchestrated attacks. The vulnerability can be exploited by a malicious actor querying Unbound for the specially crafted contents of a malicious zone with very large RRsets. Before Unbound replies to the query it will try to apply name compression which was an unbounded operation that could lock the CPU until the whole packet was complete. Unbound version 1.21.1 introduces a hard limit on the number of name compression calculations it is willing to do per packet. Packets that need more compression will result in semi-compressed packets or truncated packets, even on TCP for huge messages, to avoid locking the CPU for long. This change should not affect normal DNS traffic.

References

Affected packages

Ubuntu:Pro:14.04:LTS / unbound

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.4.22-1ubuntu4.14.04.3+esm2

Affected versions

1.*

1.4.20-1

1.4.21-1

1.4.21-1ubuntu1

1.4.21-1ubuntu2

1.4.22-1ubuntu1

1.4.22-1ubuntu2

1.4.22-1ubuntu3

1.4.22-1ubuntu4

1.4.22-1ubuntu4.14.04.1

1.4.22-1ubuntu4.14.04.2

1.4.22-1ubuntu4.14.04.3

1.4.22-1ubuntu4.14.04.3+esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "libunbound2"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "python-unbound"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "python-unbound-dbgsym"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.4.22-1ubuntu4.14.04.3+esm2",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / unbound

Package

Name: unbound
Purl: pkg:deb/ubuntu/unbound?arch=src?distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.5.8-1ubuntu1.1+esm2

Affected versions

1.*

1.4.22-1ubuntu6

1.5.7-1ubuntu1

1.5.7-1ubuntu2

1.5.8-1ubuntu1

1.5.8-1ubuntu1.1

1.5.8-1ubuntu1.1+esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "libunbound2"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "libunbound2-dbgsym"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "python-unbound"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.5.8-1ubuntu1.1+esm2",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / unbound

Package

Name: unbound
Purl: pkg:deb/ubuntu/unbound?arch=src?distro=esm-infra/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.6.7-1ubuntu2.6+esm3

Affected versions

1.*

1.6.5-1

1.6.7-1

1.6.7-1build1

1.6.7-1ubuntu1

1.6.7-1ubuntu2

1.6.7-1ubuntu2.1

1.6.7-1ubuntu2.2

1.6.7-1ubuntu2.3

1.6.7-1ubuntu2.4

1.6.7-1ubuntu2.5

1.6.7-1ubuntu2.6

1.6.7-1ubuntu2.6+esm2

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "libunbound2"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "libunbound2-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "python-unbound"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "python-unbound-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "python3-unbound"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "python3-unbound-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6+esm3",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}

Ubuntu:20.04:LTS / unbound

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.9.4-2ubuntu1.9

Affected versions

1.*

1.9.0-2ubuntu1

1.9.0-2ubuntu2

1.9.4-2

1.9.4-2ubuntu1

1.9.4-2ubuntu1.1

1.9.4-2ubuntu1.2

1.9.4-2ubuntu1.3

1.9.4-2ubuntu1.4

1.9.4-2ubuntu1.5

1.9.4-2ubuntu1.6

1.9.4-2ubuntu1.8

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "libunbound8"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "libunbound8-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "python-unbound"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "python-unbound-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "python3-unbound"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "python3-unbound-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.9",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}

Ubuntu:22.04:LTS / unbound

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.13.1-1ubuntu5.8

Affected versions

1.*

1.13.1-1ubuntu1

1.13.1-1ubuntu3

1.13.1-1ubuntu5

1.13.1-1ubuntu5.1

1.13.1-1ubuntu5.2

1.13.1-1ubuntu5.3

1.13.1-1ubuntu5.4

1.13.1-1ubuntu5.5

1.13.1-1ubuntu5.7

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "libunbound8"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "libunbound8-dbgsym"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "python3-unbound"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "python3-unbound-dbgsym"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.8",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}

Ubuntu:24.10 / unbound

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.20.0-1ubuntu2.1

Affected versions

1.*

1.19.2-1ubuntu3

1.20.0-1ubuntu1

1.20.0-1ubuntu2

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "libunbound8"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "libunbound8-dbgsym"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "python3-unbound"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "python3-unbound-dbgsym"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.20.0-1ubuntu2.1",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}

Ubuntu:24.04:LTS / unbound

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.19.2-1ubuntu3.3

Affected versions

1.*

1.17.1-2

1.18.0-2ubuntu1

1.18.0-2ubuntu2

1.19.1-1ubuntu1

1.19.2-1ubuntu1

1.19.2-1ubuntu3

1.19.2-1ubuntu3.1

1.19.2-1ubuntu3.2

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "libunbound8"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "libunbound8-dbgsym"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "python3-unbound"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "python3-unbound-dbgsym"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.19.2-1ubuntu3.3",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}