Ubuntu.comUB:CVE-2020-27840CVE-2020-27840
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.006 Low
EPSS
Percentile
79.1%
A flaw was found in samba. Spaces used in a string around a domain name
(DN), while supposed to be ignored, can cause invalid DN strings with
spaces to instead write a zero-byte into out-of-bounds memory, resulting in
a crash. The highest threat from this vulnerability is to system
availability.
Bugs
Notes
| Author | Note |
|---|---|
| mdeslaur | This issue is actually in the ldb package, the samba package uses the system ldb library, not the included one |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | ldb | < 2:1.2.3-1ubuntu0.2 | UNKNOWN |
| ubuntu | 20.04 | noarch | ldb | < 2:2.0.10-0ubuntu0.20.04.3 | UNKNOWN |
| ubuntu | 20.10 | noarch | ldb | < 2:2.1.4-2ubuntu0.1 | UNKNOWN |
| ubuntu | 14.04 | noarch | ldb | < 1:1.1.24-0ubuntu0.14.04.2+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 16.04 | noarch | ldb | < 2:1.1.24-1ubuntu3.2 | 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
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.006 Low
EPSS
Percentile
79.1%