CVE-2022-42898

Severity CVSS v4.0:

Pending analysis

Type:

CWE-190 Integer Overflow or Wraparound

Publication date:

25/12/2022

Last modified:

08/10/2023

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."

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:mit:kerberos_5::::::::	1.8 (including)	1.19.4 (excluding)
cpe:2.3:a:mit:kerberos_5:1.20:-::::::
cpe:2.3:a:mit:kerberos_5:1.20:beta1::::::
cpe:2.3:a:heimdal_project:heimdal::::::::		7.7.1 (excluding)
cpe:2.3:a:samba:samba::::::::		4.15.12 (excluding)
cpe:2.3:a:samba:samba::::::::	4.16.0 (including)	4.16.7 (excluding)
cpe:2.3:a:samba:samba::::::::	4.17.0 (including)	4.17.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-42898

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools