Stack-based Buffer Overflow Affecting 389-ds-base package, versions <0:1.3.10.2-17.amzn2.0.11


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.83% (55th percentile)

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  • Snyk IDSNYK-AMZN2-389DSBASE-20244291
  • published29 Sept 2026
  • disclosed31 Jul 2026

Introduced: 31 Jul 2026

CVE-2026-15722  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 389-ds-base to version 0:1.3.10.2-17.amzn2.0.11 or higher.
This issue was patched in ALAS2-2026-3926.

NVD Description

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

A stack buffer overflow flaw was found in 389 Directory Server (389-ds-base). The get_ruvelement_from_berval() function in repl5_ruv.c copies digit characters from a network-supplied RUV berval into a fixed 16-byte stack buffer without bounds checking. A remote unauthenticated attacker can crash the LDAP server by sending a crafted StartNSDS50ReplicationRequest extended operation containing a replica ID field with more than 16 digit characters. The overflow occurs during payload decoding, before any authorization check. Stack protectors limit impact to denial of service.

CVSS Base Scores

version 3.1