CVE-2021-36222

Description

ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.

CVSS breakdown

Affected products

• Debian / debian_linux10.0 – 10.0
• MIT / Kerberos 51.18.4
• NetApp / active_iq_unified_manager
• NetApp / active_iq_unified_manager
• NetApp / OnCommand Insight
• NetApp / OnCommand Workflow Automation
• NetApp / SnapCenter
• oracle / mysql_server8.0.0 – 8.0.26

References

• VENDOR_ADVISORYhttps://web.mit.edu/kerberos/advisories/
• PATCHhttps://github.com/krb5/krb5/releases
• VENDOR_ADVISORYhttps://www.debian.org/security/2021/dsa-4944
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuoct2021.html
• PATCHhttps://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562
• MISChttps://security.netapp.com/advisory/ntap-20211022-0003/
• MISChttps://security.netapp.com/advisory/ntap-20211104-0007/