CVE-2022-42898

CVE Details

Release Date:

2022-12-25

Description

PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."

See more information about CVE-2022-42898 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	8.8	Base Metrics:	AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (krb5)	ELSA-2023-12104	2023-02-09
Oracle Linux version 7 (krb5)	ELSA-2022-8640	2022-11-29
Oracle Linux version 8 (krb5)	ELSA-2022-8638	2022-11-28
Oracle Linux version 9 (krb5)	ELSA-2022-8637	2022-11-29
Oracle VM version 3 (krb5)	OVMSA-2023-0008	2023-05-04

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team