CVE-2022-45142

2023-03-0623:15:11

CWE-354

[email protected]

web.nvd.nist.gov

213

cve-2022-3437

fix

logic inversion

gssapi

arcfour

heimdal

7.5 High

CVSS3

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

7 High

AI Score

Confidence

High

0.01 Low

EPSS

Percentile

83.7%

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

CPENameOperatorVersion
heimdal_project:heimdalheimdal project heimdaleq7.7.1
heimdal_project:heimdalheimdal project heimdaleq7.8.0

CPE	Name	Operator	Version
heimdal_project:heimdal	heimdal project heimdal	eq	7.7.1
heimdal_project:heimdal	heimdal project heimdal	eq	7.8.0

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "Samba",
    "versions": [
      {
        "version": "unknown",
        "status": "affected"
      }
    ]
  }
]