CVSS2
Attack Vector
NETWORK
Attack 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
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
EPSS
Percentile
82.7%
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 (CVE-2020-27840). A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity (CVE-2021-20254). 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). Also, the samba package for Mageia 7 fixes a scriplet issue when updating. Additionally, the sssd package has been rebuilt for the updated ldb package.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Mageia | 7 | noarch | ldb | < 1.5.8-1.1 | ldb-1.5.8-1.1.mga7 |
Mageia | 7 | noarch | samba | < 4.10.18-1.3 | samba-4.10.18-1.3.mga7 |
Mageia | 7 | noarch | sssd | < 1.16.3-3.3 | sssd-1.16.3-3.3.mga7 |
Mageia | 8 | noarch | ldb | < 2.1.5-1 | ldb-2.1.5-1.mga8 |
Mageia | 8 | noarch | samba | < 4.12.15-1 | samba-4.12.15-1.mga8 |
Mageia | 8 | noarch | sssd | < 2.4.0-1.1 | sssd-2.4.0-1.1.mga8 |
CVSS2
Attack Vector
NETWORK
Attack 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
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
EPSS
Percentile
82.7%