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%
Issue Overview:
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. (CVE-2021-20277)
Affected Packages:
libldb
Issue Correction:
Run yum update libldb to update your system.
New Packages:
i686:
libldb-1.5.4-2.17.amzn1.i686
libldb-devel-1.5.4-2.17.amzn1.i686
pyldb-1.5.4-2.17.amzn1.i686
libldb-debuginfo-1.5.4-2.17.amzn1.i686
pyldb-devel-1.5.4-2.17.amzn1.i686
ldb-tools-1.5.4-2.17.amzn1.i686
src:
libldb-1.5.4-2.17.amzn1.src
x86_64:
libldb-1.5.4-2.17.amzn1.x86_64
pyldb-devel-1.5.4-2.17.amzn1.x86_64
pyldb-1.5.4-2.17.amzn1.x86_64
libldb-debuginfo-1.5.4-2.17.amzn1.x86_64
libldb-devel-1.5.4-2.17.amzn1.x86_64
ldb-tools-1.5.4-2.17.amzn1.x86_64
Red Hat: CVE-2021-20277
Mitre: CVE-2021-20277
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | libldb | < 1.5.4-2.17.amzn1 | libldb-1.5.4-2.17.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | libldb-devel | < 1.5.4-2.17.amzn1 | libldb-devel-1.5.4-2.17.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | pyldb | < 1.5.4-2.17.amzn1 | pyldb-1.5.4-2.17.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | libldb-debuginfo | < 1.5.4-2.17.amzn1 | libldb-debuginfo-1.5.4-2.17.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | pyldb-devel | < 1.5.4-2.17.amzn1 | pyldb-devel-1.5.4-2.17.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | ldb-tools | < 1.5.4-2.17.amzn1 | ldb-tools-1.5.4-2.17.amzn1.i686.rpm |
Amazon Linux | 1 | x86_64 | libldb | < 1.5.4-2.17.amzn1 | libldb-1.5.4-2.17.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | pyldb-devel | < 1.5.4-2.17.amzn1 | pyldb-devel-1.5.4-2.17.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | pyldb | < 1.5.4-2.17.amzn1 | pyldb-1.5.4-2.17.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | libldb-debuginfo | < 1.5.4-2.17.amzn1 | libldb-debuginfo-1.5.4-2.17.amzn1.x86_64.rpm |
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%