Ubuntu.comUB:CVE-2021-20277CVE-2021-20277
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
0.005 Low
EPSS
Percentile
75.0%
A flaw was found in Samba’s libldb. Multiple, consecutive leading spaces in
an LDAP attribute can lead to an out-of-bounds memory write, leading to a
crash of the LDAP server process handling the request. 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
0.005 Low
EPSS
Percentile
75.0%