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 breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- fedoraproject / fedora31 – 31
- MIT / Kerberos 51.17.2
- NetApp / active_iq_unified_manager
- NetApp / active_iq_unified_manager
- NetApp / cloud_backup
- NetApp / OnCommand Insight
- NetApp / OnCommand Workflow Automation
- NetApp / SnapCenter
- oracle / communications_cloud_native_core_policy1.14.0 – 1.14.0
- oracle / communications_offline_mediation_controller12.0.0.3.0 – 12.0.0.3.0
- oracle / communications_pricing_design_center12.0.0.3.0 – 12.0.0.3.0
- oracle / mysql_server8.0.23
References
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2020/11/msg00011.html
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73IGOG6CZAVMVNS4GGRMOLOZ7B6QVA7F/
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPH2V3WSQTELROZK3GFCPQDOFLKIZ6H5/
- MISChttps://security.gentoo.org/glsa/202011-17
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/45KKOZQWIIIW5C45PJVGQ32AXBSYNBE7/
- VENDOR_ADVISORYhttps://www.debian.org/security/2020/dsa-4795
- VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuApr2021.html
- MISChttps://security.netapp.com/advisory/ntap-20210513-0002/
- PATCHhttps://github.com/krb5/krb5/commit/57415dda6cf04e73ffc3723be518eddfae599bfd
- MISChttps://security.netapp.com/advisory/ntap-20201202-0001/
- MAILING_LISThttps://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- MAILING_LISThttps://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- VENDOR_ADVISORYhttps://www.oracle.com//security-alerts/cpujul2021.html
- VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuapr2022.html
Updated 22m ago · 8 sources