CVE-2021-36222
HIGH
7.5
CVSS Score
Published: July 22, 2021 at 05:28 PM UTC
Updated: October 14, 2026 at 12:17 PM UTC
7 products affected across 4 vendorsDebian LinuxMySQL ServerOnCommand Insight
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Severity
HIGH7.5
Exploit prediction
EPSS 11%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 1.18.41.19.0 ≤ v < 1.19.2
Affected range stops below 1.18.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.19.2, so it looks safe — our inference, not a vendor statement
All versions
95%
All versions
All versions
SnapCenter· NetAppdrupal
95%All versions
95%
8.0.0 ≤ v ≤ 8.0.26
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (8)
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/krb5/krb5/releasesx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20211022-0003/x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20211104-0007/Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4944x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuoct2021.htmlSource: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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