Ubuntu.comUB:CVE-2021-4115CVE-2021-4115
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
42.5%
There is a flaw in polkit which can allow an unprivileged user to cause
polkit to crash, due to process file descriptor exhaustion. The highest
threat from this vulnerability is to availability. NOTE: Polkit process
outage duration is tied to the failing process being reaped and a new one
being spawned
Notes
| Author | Note |
|---|---|
| mdeslaur | Introduced by backported patch in focal+: PolkitSystemBusName-Retrieve-both-pid-and-uid.patch |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 20.04 | noarch | policykit-1 | < 0.105-26ubuntu1.3 | UNKNOWN |
| ubuntu | 21.10 | noarch | policykit-1 | < 0.105-31ubuntu0.2 | UNKNOWN |
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
42.5%