ALT-PU-2021-2358-1
Closed vulnerabilities
Published: 2021-07-22
BDU:2021-03997
Уязвимость компонента Key Distribution Center (KDC) сетевого протокола аутентификации Kerberos, позволяющая нарушителю вызвать отказ в обслуживании
Severity: HIGH (7.5)
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References:
Published: 2021-07-22
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2021-36222
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.
Severity: HIGH (7.5)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References:
- https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562
- https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562
- https://github.com/krb5/krb5/releases
- https://github.com/krb5/krb5/releases
- https://security.netapp.com/advisory/ntap-20211022-0003/
- https://security.netapp.com/advisory/ntap-20211022-0003/
- https://security.netapp.com/advisory/ntap-20211104-0007/
- https://security.netapp.com/advisory/ntap-20211104-0007/
- https://web.mit.edu/kerberos/advisories/
- https://web.mit.edu/kerberos/advisories/
- DSA-4944
- DSA-4944
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html