5.3
MEDIUM
CVE-2019-14861
Samba DNS Server Memory Corruption Vulnerability
Description

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.

INFO

Published Date :

Dec. 10, 2019, 11:15 p.m.

Last Modified :

June 25, 2024, 2:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

1.6
Affected Products

The following products are affected by CVE-2019-14861 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Canonical ubuntu_linux
1 Fedoraproject fedora
1 Debian debian_linux
1 Opensuse leap
1 Samba samba

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-14861 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-14861 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Jun. 25, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2024/06/24/3 [No types assigned]
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/ [No types assigned]
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/ [No types assigned]
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/
  • Modified Analysis by [email protected]

    Jan. 30, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 29, 2021

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 04, 2020

    Action Type Old Value New Value
    Removed CWE Red Hat, Inc. CWE-125
    Added CWE Red Hat, Inc. CWE-276
    Removed CWE Reason CWE-125 / More specific CWE option available
  • Modified Analysis by [email protected]

    Oct. 09, 2020

    Action Type Old Value New Value
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/ Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202003-52 No Types Assigned https://security.gentoo.org/glsa/202003-52 Third Party Advisory
    Removed CWE NIST CWE-20
    Added CWE NIST CWE-276
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 25, 2020

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202003-52 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 03, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/ [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 23, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 18, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14861 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14861 Issue Tracking, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/ Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20191210-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20191210-0002/ Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/4217-1/ No Types Assigned https://usn.ubuntu.com/4217-1/ Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/4217-2/ No Types Assigned https://usn.ubuntu.com/4217-2/ Third Party Advisory
    Changed Reference Type https://www.samba.org/samba/security/CVE-2019-14861.html No Types Assigned https://www.samba.org/samba/security/CVE-2019-14861.html Vendor Advisory
    Changed Reference Type https://www.synology.com/security/advisory/Synology_SA_19_40 No Types Assigned https://www.synology.com/security/advisory/Synology_SA_19_40 Third Party Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.9.17 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.10.0 up to (excluding) 4.10.11 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.11.0 up to (excluding) 4.11.3
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 18, 2019

    Action Type Old Value New Value
    Added Reference https://www.synology.com/security/advisory/Synology_SA_19_40 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 12, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/ [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 11, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4217-2/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-14861 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-14861 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.99 }} -0.01%

score

0.84118

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability