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.
Find out more about CVE-2018-14629 from the MITRE CVE dictionary dictionary and NIST NVD.
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.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 6.5 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Network |
Attack Complexity | Low |
Privileges Required | Low |
User Interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity Impact | None |
Availability Impact | High |
Platform | Package | State |
---|---|---|
Red Hat Virtualization 4 | samba | Not affected |
Red Hat Gluster Storage 3 | samba | Not affected |
Red Hat Enterprise Linux 7 | samba | Not affected |
Red Hat Enterprise Linux 6 | samba4 | Not affected |
Red Hat Enterprise Linux 6 | samba | Not affected |
Red Hat Enterprise Linux 5 | samba | Not affected |
Red Hat Enterprise Linux 5 | samba3x | Not affected |