Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mit | Kerberos 5 | < 1.18.4 |
| Debian | Debian Linux | 10.0 |
| Netapp | Active Iq Unified Manager | - |
| Netapp | Oncommand Insight | - |
| Netapp | Oncommand Workflow Automation | - |
| Netapp | Snapcenter | - |
| Oracle | Mysql Server | >= 8.0.0, <= 8.0.26 |
Related Weaknesses (CWE)
References
- https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562PatchThird Party Advisory
- https://github.com/krb5/krb5/releasesRelease NotesThird Party Advisory
- https://security.netapp.com/advisory/ntap-20211022-0003/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211104-0007/Third Party Advisory
- https://web.mit.edu/kerberos/advisories/Not Applicable
- https://www.debian.org/security/2021/dsa-4944Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatchThird Party Advisory
- https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562PatchThird Party Advisory
- https://github.com/krb5/krb5/releasesRelease NotesThird Party Advisory
- https://security.netapp.com/advisory/ntap-20211022-0003/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211104-0007/Third Party Advisory
- https://web.mit.edu/kerberos/advisories/Not Applicable
- https://www.debian.org/security/2021/dsa-4944Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatchThird Party Advisory
FAQ
What is CVE-2021-36222?
CVE-2021-36222 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 a...
How severe is CVE-2021-36222?
CVE-2021-36222 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-36222?
Check the references section above for vendor advisories and patch information. Affected products include: Mit Kerberos 5, Debian Debian Linux, Netapp Active Iq Unified Manager, Netapp Oncommand Insight, Netapp Oncommand Workflow Automation.