PRIOn knowledge basePRION:CVE-2021-36222Null pointer dereference
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.2 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.004 Low
EPSS
Percentile
74.1%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| debian_linux | eq | 10.0 | |
| kerberos_5 | ge | 1.19.0 | |
| kerberos_5 | lt | 1.19.2 | |
| kerberos_5 | lt | 1.18.4 | |
| mysql_server | ge | 8.0.0 | |
| mysql_server | le | 8.0.26 |
References
github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562
github.com/krb5/krb5/releases
security.netapp.com/advisory/ntap-20211022-0003/
security.netapp.com/advisory/ntap-20211104-0007/
web.mit.edu/kerberos/advisories/
www.debian.org/security/2021/dsa-4944
www.oracle.com/security-alerts/cpuoct2021.html
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.2 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.004 Low
EPSS
Percentile
74.1%