USN-5126-1

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Source
https://ubuntu.com/security/notices/USN-5126-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5126-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-5126-1
Upstream
Related
Published
2021-10-28T10:52:18.850277Z
Modified
2025-07-16T08:54:43.196962Z
Summary
bind9 vulnerability
Details

Kishore Kumar Kothapalli discovered that Bind incorrectly handled the lame cache when processing responses. A remote attacker could possibly use this issue to cause Bind to consume resources, resulting in a denial of service.

References

Affected packages

Ubuntu:18.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9@1:9.11.3+dfsg-1ubuntu1.16?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.11.3+dfsg-1ubuntu1.16

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bind9",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "bind9-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "bind9-doc",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "bind9-host",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "bind9-host-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "bind9utils",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "bind9utils-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "dnsutils",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "dnsutils-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libbind-dev",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libbind-export-dev",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libbind9-160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libbind9-160-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libdns-export1100",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libdns-export1100-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libdns-export1100-udeb",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libdns1100",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libdns1100-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libirs-export160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libirs-export160-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libirs-export160-udeb",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libirs160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libirs160-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisc-export169",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisc-export169-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisc-export169-udeb",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisc169",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisc169-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccc-export160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccc-export160-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccc-export160-udeb",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccc160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccc160-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccfg-export160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccfg-export160-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccfg-export160-udeb",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccfg160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "libisccfg160-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "liblwres160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        },
        {
            "binary_name": "liblwres160-dbgsym",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.16"
        }
    ]
}

Ubuntu:20.04:LTS / bind9

Package

Name
bind9
Purl
pkg:deb/ubuntu/bind9@1:9.16.1-0ubuntu2.9?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.16.1-0ubuntu2.9

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bind9",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-dbgsym",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-dnsutils",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-dnsutils-dbgsym",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-doc",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-host",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-host-dbgsym",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-libs",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-libs-dbgsym",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-utils",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9-utils-dbgsym",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "bind9utils",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        },
        {
            "binary_name": "dnsutils",
            "binary_version": "1:9.16.1-0ubuntu2.9"
        }
    ]
}