Description
MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.
Published: 2020-11-06
Score: 7.5 High
EPSS: 1.3% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2437-1 krb5 security update
Debian DSA Debian DSA DSA-4795-1 krb5 security update
EUVD EUVD EUVD-2020-20680 MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.
Ubuntu USN Ubuntu USN USN-4635-1 Kerberos vulnerability
History

Wed, 03 Dec 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Fedoraproject Fedora
Mit Kerberos 5
Netapp Active Iq Unified Manager Cloud Backup Oncommand Insight Oncommand Workflow Automation Snapcenter
Oracle Communications Cloud Native Core Policy Communications Offline Mediation Controller Communications Pricing Design Center Mysql Server
Redhat Enterprise Linux Rhev Hypervisor
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-12-03T18:15:34.180Z

Reserved: 2020-11-03T00:00:00.000Z

Link: CVE-2020-28196

cve-icon Vulnrichment

Updated: 2024-08-04T16:33:58.154Z

cve-icon NVD

Status : Modified

Published: 2020-11-06T08:15:13.860

Modified: 2025-12-03T19:15:52.130

Link: CVE-2020-28196

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-11-06T00:00:00Z

Links: CVE-2020-28196 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses