Debian Security Bug TrackerDEBIANCVE: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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 11 | all | ldb | < 2:2.2.0-3.1 | ldb_2:2.2.0-3.1_all.deb |
| Debian | 10 | all | ldb | < 2:1.5.1+really1.4.6-3+deb10u1 | ldb_2:1.5.1+really1.4.6-3+deb10u1_all.deb |
| Debian | 12 | all | samba | < 2:4.13.13+dfsg-1 | samba_2:4.13.13+dfsg-1_all.deb |
| Debian | 11 | all | samba | <= 2:4.13.13+dfsg-1~deb11u5 | samba_2:4.13.13+dfsg-1~deb11u5_all.deb |
| Debian | 10 | all | samba | <= 2:4.9.5+dfsg-5+deb10u3 | samba_2:4.9.5+dfsg-5+deb10u3_all.deb |
| Debian | 999 | all | samba | < 2:4.13.13+dfsg-1 | samba_2:4.13.13+dfsg-1_all.deb |
| Debian | 13 | all | samba | < 2:4.13.13+dfsg-1 | samba_2:4.13.13+dfsg-1_all.deb |
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%