CVE-2011-1528: n/a vulnerability

CVE-2011-1528: The krb5_ldap_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8...

The krb5_ldap_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, related to the locked_check_p function. NOTE: the Berkeley DB vector is covered by CVE-2011-4151.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 22:28 UTC (UTC+00:00)

Security readout for executives and security teams

This issue can crash a MIT Kerberos KDC when older krb5 versions use the LDAP backend. A crash of the KDC can interrupt authentication for dependent systems. The bundle does not provide CVSS scoring, exploit details, or evidence of active exploitation. Exposure appears limited to legacy MIT Kerberos KDC deployments running the affected krb5 versions with the LDAP backend enabled. Environments using other Kerberos implementations, newer krb5 versions, or non-LDAP backends are not shown as affected in the bundle. Treat this as a legacy authentication availability risk. It is most urgent where Kerberos is central to login, SSO, or service authentication and affected KDCs still use LDAP. Absence from KEV lowers exploitation urgency, but outages could be business-disruptive. Mitigation focus: Identify MIT krb5 KDC instances and confirm version and backend.; Prioritize KDCs using LDAP on krb5 1.8-1.8.4 or 1.9-1.9.1.; Review MIT and operating-system vendor advisories for fixed packages..

Prepared: Jun 27, 2026, 17:48 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 20, 2011, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/715579CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

No CWE listed

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