CVE-2018-1054

389 Directory Server vulnerability

CVSS

7.5

EPSS

4.6%

EPSS pct

91th

Exploited

No known

An out-of-bounds memory read flaw was found in the way 389-ds-base handled certain LDAP search filters, affecting all versions including 1.4.x. A remote, unauthenticated attacker could potentially use this flaw to make ns-slapd crash via a specially crafted LDAP request, thus resulting in denial of service.

Affected vendor

Fedoraproject

Affected product

389 Directory Server

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type (CWE)

CWE-120 — Classic Buffer Overflow
CWE-125 — Out-of-bounds Read

Published

2018-03-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 4.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2018-1054

Confirm whether Fedoraproject 389 Directory Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-1054.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-1054

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