UbuntuUSN-5828-1Kerberos vulnerabilities
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 High
AI Score
Confidence
Low
6.5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
0.005 Low
EPSS
Percentile
76.0%
Releases
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 ESM
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Packages
- krb5 - MIT Kerberos Network Authentication Protocol
Details
It was discovered that Kerberos incorrectly handled certain S4U2Self
requests. An attacker could possibly use this issue to cause a denial of
service. This issue was only addressed in Ubuntu 16.04 ESM and Ubuntu
18.04 LTS. (CVE-2018-20217)
Greg Hudson discovered that Kerberos PAC implementation incorrectly
handled certain parsing operations. A remote attacker could use this
issue to cause a denial of service, or possibly execute arbitrary code.
(CVE-2022-42898)
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 22.10 | noarch | krb5-user | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-admin-server | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-admin-server-dbgsym | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-doc | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-gss-samples | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-gss-samples-dbgsym | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-k5tls | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-k5tls-dbgsym | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-kdc | < 1.20-1ubuntu0.1 | UNKNOWN |
| Ubuntu | 22.10 | noarch | krb5-kdc-dbgsym | < 1.20-1ubuntu0.1 | UNKNOWN |
Related
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 High
AI Score
Confidence
Low
6.5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
0.005 Low
EPSS
Percentile
76.0%