Ubuntu.comUB:CVE-2022-45142CVE-2022-45142
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
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
27.8%
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced in fix for CVE-2022-3437 |
| rodrigo-zaiden | heimdal master branch not affected, only backports. |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | heimdal | < 7.5.0+dfsg-1ubuntu0.4 | UNKNOWN |
| ubuntu | 20.04 | noarch | heimdal | < 7.7.0+dfsg-1ubuntu1.4 | UNKNOWN |
| ubuntu | 22.04 | noarch | heimdal | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | heimdal | < any | UNKNOWN |
| ubuntu | 24.04 | noarch | heimdal | < any | UNKNOWN |
| ubuntu | 14.04 | noarch | heimdal | < 1.6~git20131207+dfsg-1ubuntu1.2+esm4) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 16.04 | noarch | heimdal | < 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm4) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
Related
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
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
27.8%