CVE-2021-36222

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2021-36222
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-22T18:15:23
  • Last Modified Date
  • 2021-11-28T23:19:43
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* 1 OR 1.18.4
cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* 1 OR 1.19.0 1.19.2
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* 1 OR
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:* 1 OR
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* 1 OR 8.0.0 8.0.26
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/krb5/krb5/releases Release Notes Third Party Advisory
https://web.mit.edu/kerberos/advisories/ Not Applicable
https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562 Patch Third Party Advisory
https://www.debian.org/security/2021/dsa-4944 Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20211022-0003/ Third Party Advisory
https://security.netapp.com/advisory/ntap-20211104-0007/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-36222
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36222
History
Created Old Value New Value Data Type Notes
2022-05-10 06:44:48 Added to TrackCVE
2022-12-05 06:49:24 2021-07-22T18:15Z 2021-07-22T18:15:23 CVE Published Date updated
2022-12-05 06:49:24 2021-11-28T23:19:43 CVE Modified Date updated
2022-12-05 06:49:24 Analyzed Vulnerability Status updated