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osvGoogleOSV:RLSA-2022:8638
HistoryNov 28, 2022 - 9:21 a.m.

Important: krb5 security update

2022-11-2809:21:44
Google
osv.dev
4
kerberos
network authentication
security update
integer overflow
pac parsing

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

9.4 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

76.3%

Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC).

Security Fix(es):

  • krb5: integer overflow vulnerabilities in PAC parsing (CVE-2022-42898)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

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

9.4 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

76.3%