Debian Security Bug TrackerDEBIANCVE:CVE-2021-27216CVE-2021-27216
6.3 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:C/A:C
6.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
0.0004 Low
EPSS
Percentile
5.1%
Exim 4 before 4.94.2 has Execution with Unnecessary Privileges. By leveraging a delete_pid_file race condition, a local user can delete arbitrary files as root. This involves the -oP and -oPX options.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | exim4 | < 4.94.2-1 | exim4_4.94.2-1_all.deb |
| Debian | 11 | all | exim4 | < 4.94.2-1 | exim4_4.94.2-1_all.deb |
| Debian | 10 | all | exim4 | < 4.92-8+deb10u6 | exim4_4.92-8+deb10u6_all.deb |
| Debian | 999 | all | exim4 | < 4.94.2-1 | exim4_4.94.2-1_all.deb |
| Debian | 13 | all | exim4 | < 4.94.2-1 | exim4_4.94.2-1_all.deb |
Related
6.3 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:C/A:C
6.3 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
0.0004 Low
EPSS
Percentile
5.1%