UBUNTU-CVE-2023-2911

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Source
https://ubuntu.com/security/CVE-2023-2911
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-2911.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-2911
Upstream
Downstream
Related
Published
2023-06-21T00:00:00Z
Modified
2025-09-08T16:55:43Z
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
  • Ubuntu - medium
Summary
[none]
Details

If the recursive-clients quota is reached on a BIND 9 resolver configured with both stale-answer-enable yes; and stale-answer-client-timeout 0;, a sequence of serve-stale-related lookups could cause named to loop and terminate unexpectedly due to a stack overflow. This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.

References

Affected packages

Ubuntu:20.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9@1:9.16.1-0ubuntu2.15?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.16.1-0ubuntu2.15

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bind9",
            "binary_version": "1:9.16.1-0ubuntu2.15"
        },
        {
            "binary_name": "bind9-dnsutils",
            "binary_version": "1:9.16.1-0ubuntu2.15"
        },
        {
            "binary_name": "bind9-host",
            "binary_version": "1:9.16.1-0ubuntu2.15"
        },
        {
            "binary_name": "bind9-libs",
            "binary_version": "1:9.16.1-0ubuntu2.15"
        },
        {
            "binary_name": "bind9-utils",
            "binary_version": "1:9.16.1-0ubuntu2.15"
        },
        {
            "binary_name": "bind9utils",
            "binary_version": "1:9.16.1-0ubuntu2.15"
        },
        {
            "binary_name": "dnsutils",
            "binary_version": "1:9.16.1-0ubuntu2.15"
        }
    ]
}

Ubuntu:22.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9@1:9.18.12-0ubuntu0.22.04.2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.12-0ubuntu0.22.04.2

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bind9",
            "binary_version": "1:9.18.12-0ubuntu0.22.04.2"
        },
        {
            "binary_name": "bind9-dev",
            "binary_version": "1:9.18.12-0ubuntu0.22.04.2"
        },
        {
            "binary_name": "bind9-dnsutils",
            "binary_version": "1:9.18.12-0ubuntu0.22.04.2"
        },
        {
            "binary_name": "bind9-host",
            "binary_version": "1:9.18.12-0ubuntu0.22.04.2"
        },
        {
            "binary_name": "bind9-libs",
            "binary_version": "1:9.18.12-0ubuntu0.22.04.2"
        },
        {
            "binary_name": "bind9-utils",
            "binary_version": "1:9.18.12-0ubuntu0.22.04.2"
        },
        {
            "binary_name": "bind9utils",
            "binary_version": "1:9.18.12-0ubuntu0.22.04.2"
        },
        {
            "binary_name": "dnsutils",
            "binary_version": "1:9.18.12-0ubuntu0.22.04.2"
        }
    ]
}