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ubuntuUbuntuUSN-5959-1
HistoryMar 16, 2023 - 12:00 a.m.

Kerberos vulnerabilities

2023-03-1600:00:00
ubuntu.com
37

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

7.4 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

74.2%

Releases

  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • krb5 - MIT Kerberos Network Authentication Protocol

Details

It was discovered that Kerberos incorrectly handled memory when processing
KDC data, which could lead to a NULL pointer dereference. An attacker could
possibly use this issue to cause a denial of service or have other
unspecified impacts. (CVE-2021-36222, CVE-2021-37750)

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

7.4 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

74.2%