CVE-2018-14629
published 2018-11-28CVE-2018-14629: A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion…
PriorityP432medium6.5CVSS 3.0
AVNACLPRLUINSUCNINAH
EPSS
5.19%
91.6th percentile
A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | samba | < samba 2:4.9.2+dfsg-2 (bookworm) | samba 2:4.9.2+dfsg-2 (bookworm) |
| samba | samba | >= 0 < 2:4.9.2+dfsg-2 | 2:4.9.2+dfsg-2 |
| samba | samba | >= 0 < 2:4.9.2+dfsg-2 | 2:4.9.2+dfsg-2 |
| samba | samba | >= 0 < 2:4.9.2+dfsg-2 | 2:4.9.2+dfsg-2 |
| samba | samba | >= 0 < 2:4.9.2+dfsg-2 | 2:4.9.2+dfsg-2 |
| samba | samba | >= 0 < 2:4.3.11+dfsg-0ubuntu0.14.04.19 | 2:4.3.11+dfsg-0ubuntu0.14.04.19 |
| samba | samba | >= 0 < 2:4.3.11+dfsg-0ubuntu0.16.04.18 | 2:4.3.11+dfsg-0ubuntu0.16.04.18 |
| samba | samba | >= 0 < 2:4.7.6+dfsg~ubuntu-0ubuntu2.5 | 2:4.7.6+dfsg~ubuntu-0ubuntu2.5 |
| samba | samba | >= 4.0.0 < 4.7.12 | 4.7.12 |
| samba | samba | >= 4.8.0 < 4.8.7 | 4.8.7 |
| samba | samba | >= 4.8.8 < 4.9.3 | 4.9.3 |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu6.5MEDIUM
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GHSA
GHSA-4hxq-xf3v-3jxv: A denial of service vulnerability was discovered in Samba's LDAP server before versions 4
ghsa_unreviewed·2022-05-13
CVE-2018-14629 [MEDIUM] CWE-835 GHSA-4hxq-xf3v-3jxv: A denial of service vulnerability was discovered in Samba's LDAP server before versions 4
A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
OSV
CVE-2018-14629: A denial of service vulnerability was discovered in Samba's LDAP server before versions 4
osv·2018-11-28·CVSS 6.5
CVE-2018-14629 [MEDIUM] CVE-2018-14629: A denial of service vulnerability was discovered in Samba's LDAP server before versions 4
A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
OSV
samba vulnerabilities
osv·2018-11-27·CVSS 6.5
CVE-2018-14629 [MEDIUM] samba vulnerabilities
samba vulnerabilities
Florian Stuelpner discovered that Samba incorrectly handled CNAME records.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service. (CVE-2018-14629)
Alex MacCuish discovered that Samba incorrectly handled memory when
configured to accept smart-card authentication. A remote attacker could
possibly use this issue to cause Samba to crash, resulting in a denial of
service. (CVE-2018-16841)
Garming Sam discovered that Samba incorrectly handled memory when
processing LDAP searches. A remote attacker could possibly use this issue
to cause Samba to crash, resulting in a denial of service. (CVE-2018-16851)
Ubuntu
Samba vulnerabilities
vendor_ubuntu·2018-11-27·CVSS 6.5
CVE-2018-14629 [MEDIUM] Samba vulnerabilities
Title: Samba vulnerabilities
Summary: Several security issues were fixed in Samba.
Florian Stuelpner discovered that Samba incorrectly handled CNAME records.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service. (CVE-2018-14629)
Alex MacCuish discovered that Samba incorrectly handled memory when
configured to accept smart-card authentication. A remote attacker could
possibly use this issue to cause Samba to crash, resulting in a denial of
service. (CVE-2018-16841)
Garming Sam discovered that Samba incorrectly handled memory when
processing LDAP searches. A remote attacker could possibly use this issue
to cause Samba to crash, resulting in a denial of service. (CVE-2018-16851)
Instructions: In general, a standard system update will make all t
Ubuntu
Samba vulnerabilities
vendor_ubuntu·2018-11-27·CVSS 6.5
CVE-2018-14629 [MEDIUM] Samba vulnerabilities
Title: Samba vulnerabilities
Summary: Several security issues were fixed in Samba.
USN-3827-1 fixed a vulnerability in samba. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Florian Stuelpner discovered that Samba incorrectly handled CNAME records.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service. (CVE-2018-14629)
Alex MacCuish discovered that Samba incorrectly handled memory when
configured to accept smart-card authentication. A remote attacker could
possibly use this issue to cause Samba to crash, resulting in a denial of
service. (CVE-2018-16841)
Garming Sam discovered that Samba incorrectly handled memory when
processing LDAP searches. A remote attacker could possibly use this issue
to
Red Hat
samba: Unprivileged adding of CNAME record causing loop in AD LDAP server
vendor_redhat·2018-11-20·CVSS 6.5
CVE-2018-14629 [MEDIUM] CWE-400 samba: Unprivileged adding of CNAME record causing loop in AD LDAP server
samba: Unprivileged adding of CNAME record causing loop in AD LDAP server
A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
A denial of service vulnerability was discovered in Samba's LDAP server. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
Statement: Samba 4 packages distributed with Red Hat Enterprise Linux are built without the AD DC functionality, where this flaw is present. These packages are not affected by this vulnerability.
Package: samba (Red Hat Enterprise Linu
Debian
CVE-2018-14629: samba - A denial of service vulnerability was discovered in Samba's LDAP server before v...
vendor_debian·2018·CVSS 6.5
CVE-2018-14629 [MEDIUM] CVE-2018-14629: samba - A denial of service vulnerability was discovered in Samba's LDAP server before v...
A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
Scope: local
bookworm: resolved (fixed in 2:4.9.2+dfsg-2)
bullseye: resolved (fixed in 2:4.9.2+dfsg-2)
forky: resolved (fixed in 2:4.9.2+dfsg-2)
sid: resolved (fixed in 2:4.9.2+dfsg-2)
trixie: resolved (fixed in 2:4.9.2+dfsg-2)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-14629 samba: Unprivileged adding of CNAME record causing loop in AD LDAP server [fedora-all]
bugzilla·2018-11-28·CVSS 6.5
CVE-2018-14629 [MEDIUM] CVE-2018-14629 samba: Unprivileged adding of CNAME record causing loop in AD LDAP server [fedora-all]
CVE-2018-14629 samba: Unprivileged adding of CNAME record causing loop in AD LDAP server [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects mul
Bugzilla
CVE-2018-14629 samba: Unprivileged adding of CNAME record causing loop in AD LDAP server
bugzilla·2018-09-05·CVSS 6.5
CVE-2018-14629 [MEDIUM] CVE-2018-14629 samba: Unprivileged adding of CNAME record causing loop in AD LDAP server
CVE-2018-14629 samba: Unprivileged adding of CNAME record causing loop in AD LDAP server
All versions of Samba from 4.0.0 onwards are vulnerable infinite query recursion caused by CNAME loops. Any dns record can be added via ldap by an unprivileged user using the ldbadd tool, so this is a security issue.
Discussion:
Acknowledgments:
Name: Andrew Bartlett (Catalyst and Samba Team)
Upstream: Florian Stülpner (HiperScan)
---
Upstream bug:
https://bugzilla.samba.org/show_bug.cgi?id=13600
---
Statement:
Samba 4 packages distributed with Red Hat Enterprise Linux are built without the AD DC functionality, where this flaw is present. These packages are not affected by this vulnerability.
---
External Reference:
https://www.samba.org/samba/security/CVE-2018-14629.html
---
Created sam
http://www.securityfocus.com/bid/106022https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14629https://lists.debian.org/debian-lts-announce/2018/12/msg00005.htmlhttps://security.gentoo.org/glsa/202003-52https://security.netapp.com/advisory/ntap-20181127-0001/https://usn.ubuntu.com/3827-1/https://usn.ubuntu.com/3827-2/https://www.debian.org/security/2018/dsa-4345https://www.samba.org/samba/security/CVE-2018-14629.htmlhttp://www.securityfocus.com/bid/106022https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14629https://lists.debian.org/debian-lts-announce/2018/12/msg00005.htmlhttps://security.gentoo.org/glsa/202003-52https://security.netapp.com/advisory/ntap-20181127-0001/https://usn.ubuntu.com/3827-1/https://usn.ubuntu.com/3827-2/https://www.debian.org/security/2018/dsa-4345https://www.samba.org/samba/security/CVE-2018-14629.html
2018-11-28
Published