[Pkg-freeipa-devel] Bug#1139819: 389-ds-base: CVE-2026-11884

[Moritz Mühlenhoff]

Source: 389-ds-base
X-Debbugs-CC: team at security.debian.org
Severity: grave
Tags: security

Hi,

The following vulnerability was published for 389-ds-base.

CVE-2026-11884[0]:
| A heap buffer overflow flaw was found in 389 Directory Server. When
| serializing objectclass definitions, the oc_superior (SUP) field
| length is omitted from buffer size calculations in read_schema_dse()
| and schema_oc_to_string(), but the field is still written via
| strcat(). An attacker with Directory Manager privileges, or a
| compromised replication supplier, can trigger a server crash by
| creating objectclasses with long SUP values. This is an incomplete
| fix variant of CVE-2025-14905.

https://bugzilla.redhat.com/show_bug.cgi?id=2423624


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-11884
    https://www.cve.org/CVERecord?id=CVE-2026-11884

Please adjust the affected versions in the BTS as needed.