UBUNTU-CVE-2023-6516

Source
https://ubuntu.com/security/CVE-2023-6516
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-6516.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-6516
Related
Published
2024-02-13T00:00:00Z
Modified
2024-10-15T14:12:45Z
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

To keep its cache database efficient, named running as a recursive resolver occasionally attempts to clean up the database. It uses several methods, including some that are asynchronous: a small chunk of memory pointing to the cache element that can be cleaned up is first allocated and then queued for later processing. It was discovered that if the resolver is continuously processing query patterns triggering this type of cache-database maintenance, named may not be able to handle the cleanup events in a timely manner. This in turn enables the list of queued cleanup events to grow infinitely large over time, allowing the configured max-cache-size limit to be significantly exceeded. This issue affects BIND 9 versions 9.16.0 through 9.16.45 and 9.16.8-S1 through 9.16.45-S1.

References

Affected packages

Ubuntu:Pro:18.04:LTS / isc-dhcp

Package

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

Affected ranges

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

Affected versions

4.*

4.3.5-3ubuntu2
4.3.5-3ubuntu3
4.3.5-3ubuntu4
4.3.5-3ubuntu5
4.3.5-3ubuntu6
4.3.5-3ubuntu7
4.3.5-3ubuntu7.1
4.3.5-3ubuntu7.2
4.3.5-3ubuntu7.3
4.3.5-3ubuntu7.4

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.16.48-0ubuntu0.20.04.1

Affected versions

1:9.*

1:9.11.5.P4+dfsg-5.1ubuntu2
1:9.11.5.P4+dfsg-5.1ubuntu3
1:9.11.5.P4+dfsg-5.1ubuntu4
1:9.11.5.P4+dfsg-5.1ubuntu5
1:9.11.14+dfsg-1ubuntu1
1:9.11.14+dfsg-3ubuntu1
1:9.16.0-1ubuntu3
1:9.16.0-1ubuntu4
1:9.16.0-1ubuntu5
1:9.16.1-0ubuntu1
1:9.16.1-0ubuntu2
1:9.16.1-0ubuntu2.1
1:9.16.1-0ubuntu2.2
1:9.16.1-0ubuntu2.3
1:9.16.1-0ubuntu2.4
1:9.16.1-0ubuntu2.6
1:9.16.1-0ubuntu2.7
1:9.16.1-0ubuntu2.8
1:9.16.1-0ubuntu2.9
1:9.16.1-0ubuntu2.10
1:9.16.1-0ubuntu2.11
1:9.16.1-0ubuntu2.12
1:9.16.1-0ubuntu2.14
1:9.16.1-0ubuntu2.15
1:9.16.1-0ubuntu2.16

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-dbgsym"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-dnsutils"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-dnsutils-dbgsym"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-doc"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-host-dbgsym"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-libs"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-libs-dbgsym"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-utils"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9-utils-dbgsym"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1",
            "binary_name": "dnsutils"
        }
    ]
}

Ubuntu:22.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.18-0ubuntu0.22.04.1

Affected versions

1:9.*

1:9.16.15-1ubuntu1
1:9.16.15-1ubuntu2
1:9.16.15-1ubuntu3
1:9.18.0-2ubuntu1
1:9.18.0-2ubuntu2
1:9.18.0-2ubuntu3
1:9.18.1-1ubuntu1
1:9.18.1-1ubuntu1.1
1:9.18.1-1ubuntu1.2
1:9.18.1-1ubuntu1.3
1:9.18.12-0ubuntu0.22.04.1
1:9.18.12-0ubuntu0.22.04.2
1:9.18.12-0ubuntu0.22.04.3

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-dbgsym"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-dev"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-dnsutils"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-dnsutils-dbgsym"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-doc"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-host-dbgsym"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-libs"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-libs-dbgsym"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-utils"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9-utils-dbgsym"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.18.18-0ubuntu0.22.04.1",
            "binary_name": "dnsutils"
        }
    ]
}

Ubuntu:24.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9?arch=src?distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.21-0ubuntu1

Affected versions

1:9.*

1:9.18.18-0ubuntu2

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-dbgsym"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-dev"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-dnsutils"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-dnsutils-dbgsym"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-doc"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-host-dbgsym"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-libs"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-libs-dbgsym"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-utils"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9-utils-dbgsym"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.18.21-0ubuntu1",
            "binary_name": "dnsutils"
        }
    ]
}