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.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- network
- Complexity
- low
- Privileges
- none
- User Action
- none
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- none
- Availability
- high
- Weaknesses
- CWE-674CWE-674
Metadata
- Primary Vendor
- MIT
- Published
- 11/6/2020
- Last Modified
- 12/3/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
mit : kerberos_5mit : kerberos_5fedoraproject : fedoranetapp : active_iq_unified_managernetapp : active_iq_unified_managernetapp : cloud_backupnetapp : oncommand_insightnetapp : oncommand_workflow_automationnetapp : snapcenteroracle : communications_cloud_native_core_policyoracle : communications_offline_mediation_controlleroracle : communications_pricing_design_centeroracle : mysql_server
AI-Powered Remediation
Generate remediation guidance or a C-suite brief for this vulnerability.