Allocation of Resources Without Limits or Throttling Affecting 389-ds-base-debuginfo package, versions <0:1.3.10.2-17.amzn2.0.6


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.81% (53rd percentile)

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  • Snyk IDSNYK-AMZN2-389DSBASEDEBUGINFO-17286504
  • published10 Jun 2026
  • disclosed20 May 2026

Introduced: 20 May 2026

CVE-2026-9064  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 389-ds-base-debuginfo to version 0:1.3.10.2-17.amzn2.0.6 or higher.
This issue was patched in ALAS2-2026-3339.

NVD Description

Note: Versions mentioned in the description apply only to the upstream 389-ds-base-debuginfo package and not the 389-ds-base-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A flaw was found in 389-ds-base. The get_ldapmessage_controls_ext() function in the LDAP server does not enforce an upper bound on the number of controls per LDAP message. A remote, unauthenticated attacker can send a specially crafted LDAP request containing hundreds of thousands of minimal controls within the default maximum BER message size (2 MB), causing excessive CPU consumption and heap allocation on the server. Under concurrent exploitation, this leads to significant latency degradation, worker thread starvation, or out-of-memory termination, resulting in a denial of service.

CVSS Base Scores

version 3.1