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CVE-2022-42898

nvd nist
Published: Dec 25, 2022Modified: Jun 17, 2026

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

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."

Affected (7)

Mit
1 product
Kerberos 5
Heimdal Project
1 product
Heimdal
Samba
1 product
Samba
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Mit
Kerberos 5
From 1.8 to 1.19.4
Kerberos 5
Version 1.20
Kerberos 5
Version 1.20 beta1
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Heimdal
Before 7.7.1
Configuration C
3 vulnerable
Vulnerable SoftwareAffected Versions
Samba
Samba
Before 4.15.12
Samba
From 4.16.0 to 4.16.7
Samba
From 4.17.0 to 4.17.3

Related CWEs

CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (22)

Source: cve@mitre.org
ExploitIssue TrackingPatchThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Release NotesVendor Advisory
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.