CVE-2022-45142

2023-03-0623:15:11

CWE-354

[email protected]

web.nvd.nist.gov

fix for vulnerability

gssapi arcfour

logic inversion

message integrity

heimdal 7.7.1

heimdal 7.8.0

backporting

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

7.2

Confidence

High

EPSS

0.022

Percentile

89.6%

JSON

The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug by adding “!= 0” comparisons to the result of memcmp. When these patches were backported to the heimdal-7.7.1 and heimdal-7.8.0 branches (and possibly other branches) a logic inversion sneaked in causing the validation of message integrity codes in gssapi/arcfour to be inverted.

Affected configurations

Nvd

Node

heimdal_projectheimdalMatch7.7.1

heimdal_projectheimdalMatch7.8.0

VendorProductVersionCPE
heimdal_projectheimdal7.7.1cpe:2.3:a:heimdal_project:heimdal:7.7.1:*:*:*:*:*:*:*
heimdal_projectheimdal7.8.0cpe:2.3:a:heimdal_project:heimdal:7.8.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
heimdal_project	heimdal	7.7.1	cpe:2.3:a:heimdal_project:heimdal:7.7.1:::::::*
heimdal_project	heimdal	7.8.0	cpe:2.3:a:heimdal_project:heimdal:7.8.0:::::::*