Overview
- Description
- 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.
- Source
- secalert@redhat.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Severity
- HIGH
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"vulnerable": true,
"matchCriteriaId": "BCC5903D-5BD2-4BA3-8380-DA8895795C89"
},
{
"criteria": "cpe:2.3:a:heimdal_project:heimdal:7.8.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AE3686D9-71B1-498E-8CAD-FEA89B78D6DB"
}
],
"operator": "OR"
}
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]