UBUNTU-CVE-2018-5710

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Source
https://ubuntu.com/security/CVE-2018-5710
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-5710.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2018-5710
Upstream
Published
2018-01-16T09:29:00Z
Modified
2025-09-08T16:44:44Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function "strlen" is getting a "NULL" string as a parameter value in plugins/kdb/ldap/libkdbldap/ldapprincipal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.

References

Affected packages

Ubuntu:14.04:LTS / krb5

Package

Name
krb5
Purl
pkg:deb/ubuntu/krb5@1.12+dfsg-2ubuntu5.4?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.12+dfsg-2ubuntu5.4

Affected versions

1.*

1.10.1+dfsg-6.1ubuntu1
1.11.3+dfsg-3ubuntu2
1.12+dfsg-2ubuntu1
1.12+dfsg-2ubuntu2
1.12+dfsg-2ubuntu3
1.12+dfsg-2ubuntu4
1.12+dfsg-2ubuntu4.2
1.12+dfsg-2ubuntu5
1.12+dfsg-2ubuntu5.1
1.12+dfsg-2ubuntu5.2
1.12+dfsg-2ubuntu5.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-admin-server"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-gss-samples"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-kdc"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-kdc-ldap"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-locales"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-multidev"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-otp"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-pkinit"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "krb5-user"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libgssapi-krb5-2"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libgssrpc4"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libk5crypto3"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkadm5clnt-mit9"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkadm5srv-mit8"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkadm5srv-mit9"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkdb5-7"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkrad-dev"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkrad0"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkrb5-3"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkrb5-dev"
        },
        {
            "binary_version": "1.12+dfsg-2ubuntu5.4",
            "binary_name": "libkrb5support0"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:16.04:LTS / krb5

Package

Name
krb5
Purl
pkg:deb/ubuntu/krb5@1.13.2+dfsg-5ubuntu2.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.13.2+dfsg-5ubuntu2.1

Affected versions

1.*

1.13.2+dfsg-2
1.13.2+dfsg-3
1.13.2+dfsg-4
1.13.2+dfsg-5
1.13.2+dfsg-5ubuntu1
1.13.2+dfsg-5ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-admin-server"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-gss-samples"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-k5tls"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-kdc"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-kdc-ldap"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-locales"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-multidev"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-otp"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-pkinit"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "krb5-user"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libgssapi-krb5-2"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libgssrpc4"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libk5crypto3"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libkadm5clnt-mit9"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libkadm5srv-mit9"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libkdb5-8"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libkrad-dev"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libkrad0"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libkrb5-3"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libkrb5-dev"
        },
        {
            "binary_version": "1.13.2+dfsg-5ubuntu2.1",
            "binary_name": "libkrb5support0"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / krb5

Package

Name
krb5
Purl
pkg:deb/ubuntu/krb5@1.16-2ubuntu0.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16-2ubuntu0.1

Affected versions

1.*

1.15.1-2
1.16-2
1.16-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-admin-server"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-gss-samples"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-k5tls"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-kdc"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-kdc-ldap"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-kpropd"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-locales"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-multidev"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-otp"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-pkinit"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "krb5-user"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libgssapi-krb5-2"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libgssrpc4"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libk5crypto3"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libkadm5clnt-mit11"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libkadm5srv-mit11"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libkdb5-9"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libkrad-dev"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libkrad0"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libkrb5-3"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libkrb5-dev"
        },
        {
            "binary_version": "1.16-2ubuntu0.1",
            "binary_name": "libkrb5support0"
        }
    ],
    "availability": "No subscription required"
}