USN-6723-1

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Source
https://ubuntu.com/security/notices/USN-6723-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6723-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-6723-1
Upstream
Related
Published
2024-04-09T12:07:28.350453Z
Modified
2025-10-13T04:36:54Z
Summary
bind9 vulnerabilities
Details

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Bind icorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. (CVE-2023-50387)

It was discovered that Bind incorrectly handled preparing an NSEC3 closest encloser proof. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. (CVE-2023-50868)

References

Affected packages

Ubuntu:Pro:14.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9@1:9.9.5.dfsg-3ubuntu0.19+esm12?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.9.5.dfsg-3ubuntu0.19+esm12

Affected versions

1:9.*

1:9.9.3.dfsg.P2-4ubuntu1
1:9.9.3.dfsg.P2-4ubuntu2
1:9.9.3.dfsg.P2-4ubuntu3
1:9.9.5.dfsg-2
1:9.9.5.dfsg-3
1:9.9.5.dfsg-3ubuntu0.1
1:9.9.5.dfsg-3ubuntu0.2
1:9.9.5.dfsg-3ubuntu0.3
1:9.9.5.dfsg-3ubuntu0.4
1:9.9.5.dfsg-3ubuntu0.5
1:9.9.5.dfsg-3ubuntu0.6
1:9.9.5.dfsg-3ubuntu0.7
1:9.9.5.dfsg-3ubuntu0.8
1:9.9.5.dfsg-3ubuntu0.9
1:9.9.5.dfsg-3ubuntu0.10
1:9.9.5.dfsg-3ubuntu0.11
1:9.9.5.dfsg-3ubuntu0.12
1:9.9.5.dfsg-3ubuntu0.13
1:9.9.5.dfsg-3ubuntu0.14
1:9.9.5.dfsg-3ubuntu0.15
1:9.9.5.dfsg-3ubuntu0.16
1:9.9.5.dfsg-3ubuntu0.17
1:9.9.5.dfsg-3ubuntu0.18
1:9.9.5.dfsg-3ubuntu0.19
1:9.9.5.dfsg-3ubuntu0.19+esm1
1:9.9.5.dfsg-3ubuntu0.19+esm2
1:9.9.5.dfsg-3ubuntu0.19+esm3
1:9.9.5.dfsg-3ubuntu0.19+esm4
1:9.9.5.dfsg-3ubuntu0.19+esm5
1:9.9.5.dfsg-3ubuntu0.19+esm6
1:9.9.5.dfsg-3ubuntu0.19+esm7
1:9.9.5.dfsg-3ubuntu0.19+esm9
1:9.9.5.dfsg-3ubuntu0.19+esm10
1:9.9.5.dfsg-3ubuntu0.19+esm11

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "dnsutils"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "host"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "libbind-dev"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "libbind9-90"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "libdns100"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "libisc95"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "libisccc90"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "libisccfg90"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "liblwres90"
        },
        {
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm12",
            "binary_name": "lwresd"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-50387",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-50868",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}

Ubuntu:Pro:16.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.19+esm8?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.10.3.dfsg.P4-8ubuntu1.19+esm8

Affected versions

1:9.*

1:9.9.5.dfsg-11ubuntu1
1:9.9.5.dfsg-12
1:9.9.5.dfsg-12.1
1:9.9.5.dfsg-12.1ubuntu1
1:9.10.3.dfsg.P2-4
1:9.10.3.dfsg.P2-5
1:9.10.3.dfsg.P4-3
1:9.10.3.dfsg.P4-4
1:9.10.3.dfsg.P4-5
1:9.10.3.dfsg.P4-8
1:9.10.3.dfsg.P4-8ubuntu1
1:9.10.3.dfsg.P4-8ubuntu1.1
1:9.10.3.dfsg.P4-8ubuntu1.2
1:9.10.3.dfsg.P4-8ubuntu1.3
1:9.10.3.dfsg.P4-8ubuntu1.4
1:9.10.3.dfsg.P4-8ubuntu1.5
1:9.10.3.dfsg.P4-8ubuntu1.6
1:9.10.3.dfsg.P4-8ubuntu1.7
1:9.10.3.dfsg.P4-8ubuntu1.8
1:9.10.3.dfsg.P4-8ubuntu1.9
1:9.10.3.dfsg.P4-8ubuntu1.10
1:9.10.3.dfsg.P4-8ubuntu1.11
1:9.10.3.dfsg.P4-8ubuntu1.12
1:9.10.3.dfsg.P4-8ubuntu1.14
1:9.10.3.dfsg.P4-8ubuntu1.15
1:9.10.3.dfsg.P4-8ubuntu1.16
1:9.10.3.dfsg.P4-8ubuntu1.17
1:9.10.3.dfsg.P4-8ubuntu1.18
1:9.10.3.dfsg.P4-8ubuntu1.19
1:9.10.3.dfsg.P4-8ubuntu1.19+esm1
1:9.10.3.dfsg.P4-8ubuntu1.19+esm2
1:9.10.3.dfsg.P4-8ubuntu1.19+esm3
1:9.10.3.dfsg.P4-8ubuntu1.19+esm5
1:9.10.3.dfsg.P4-8ubuntu1.19+esm6
1:9.10.3.dfsg.P4-8ubuntu1.19+esm7

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "dnsutils"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "host"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libbind-dev"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libbind-export-dev"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libbind9-140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libdns-export162"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libdns162"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libirs-export141"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libirs141"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libisc-export160"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libisc160"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libisccc-export140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libisccc140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libisccfg-export140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "libisccfg140"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "liblwres141"
        },
        {
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm8",
            "binary_name": "lwresd"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-50387",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-50868",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}

Ubuntu:Pro:18.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9@1:9.11.3+dfsg-1ubuntu1.19+esm3?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.19+esm3

Affected versions

1:9.*

1:9.10.3.dfsg.P4-12.6ubuntu1
1:9.11.2.P1-1ubuntu2
1:9.11.2.P1-1ubuntu3
1:9.11.2.P1-1ubuntu4
1:9.11.2.P1-1ubuntu5
1:9.11.3+dfsg-1ubuntu1
1:9.11.3+dfsg-1ubuntu1.1
1:9.11.3+dfsg-1ubuntu1.2
1:9.11.3+dfsg-1ubuntu1.3
1:9.11.3+dfsg-1ubuntu1.5
1:9.11.3+dfsg-1ubuntu1.7
1:9.11.3+dfsg-1ubuntu1.8
1:9.11.3+dfsg-1ubuntu1.9
1:9.11.3+dfsg-1ubuntu1.10
1:9.11.3+dfsg-1ubuntu1.11
1:9.11.3+dfsg-1ubuntu1.12
1:9.11.3+dfsg-1ubuntu1.13
1:9.11.3+dfsg-1ubuntu1.14
1:9.11.3+dfsg-1ubuntu1.15
1:9.11.3+dfsg-1ubuntu1.16
1:9.11.3+dfsg-1ubuntu1.17
1:9.11.3+dfsg-1ubuntu1.18
1:9.11.3+dfsg-1ubuntu1.19+esm1
1:9.11.3+dfsg-1ubuntu1.19+esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "bind9"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "bind9-host"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "bind9utils"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "dnsutils"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libbind-dev"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libbind-export-dev"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libbind9-160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libdns-export1100"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libdns1100"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libirs-export160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libirs160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libisc-export169"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libisc169"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libisccc-export160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libisccc160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libisccfg-export160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "libisccfg160"
        },
        {
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm3",
            "binary_name": "liblwres160"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2023-50387",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2023-50868",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}