9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
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
8.5 High
AI Score
Confidence
Low
0.467 Medium
EPSS
Percentile
97.5%
Package : samba
Version : 2:4.5.16+dfsg-1+deb9u3
CVE ID : CVE-2020-1472 CVE-2020-10704 CVE-2020-10730 CVE-2020-10745
CVE-2020-10760 CVE-2020-14303 CVE-2020-14318 CVE-2020-14323
CVE-2020-14383
Multiple vulnerabilities have been discovered in Samba, a SMB/CIFS file,
print, and login server for Unix.
CVE-2020-1472
Unauthenticated domain controller compromise by subverting Netlogon
cryptography. This vulnerability includes both ZeroLogon and
non-ZeroLogon variations.
CVE-2020-10704
An unauthorized user can trigger a denial of service via a stack
overflow in the AD DC LDAP server.
CVE-2020-10730
NULL pointer de-reference and use-after-free in Samba AD DC LDAP
Server with ASQ, VLV and paged_results.
CVE-2020-10745
Denial of service resulting from abuse of compression of replies to
NetBIOS over TCP/IP name resolution and DNS packets causing excessive
CPU load on the Samba AD DC.
CVE-2020-10760
The use of the paged_results or VLV controls against the Global
Catalog LDAP server on the AD DC will cause a use-after-free.
CVE-2020-14303
Denial of service resulting from CPU spin and and inability to
process further requests once the AD DC NBT server receives an empty
(zero-length) UDP packet to port 137.
CVE-2020-14318
Missing handle permissions check in ChangeNotify
CVE-2020-14323
Unprivileged user can crash winbind via invalid lookupsids DoS
CVE-2020-14383
DNS server crash via invalid records resulting from uninitialized
variables
For Debian 9 stretch, these problems have been fixed in version
2:4.5.16+dfsg-1+deb9u3.
We recommend that you upgrade your samba packages.
For the detailed security status of samba please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/samba
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: PGP signature
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 9 | armel | libsmbclient-dev | < 2:4.5.16+dfsg-1+deb9u3 | libsmbclient-dev_2:4.5.16+dfsg-1+deb9u3_armel.deb |
Debian | 9 | all | samba | < 2:4.5.16+dfsg-1+deb9u3 | samba_2:4.5.16+dfsg-1+deb9u3_all.deb |
Debian | 9 | armel | libsmbclient | < 2:4.5.16+dfsg-1+deb9u3 | libsmbclient_2:4.5.16+dfsg-1+deb9u3_armel.deb |
Debian | 9 | amd64 | samba-vfs-modules | < 2:4.5.16+dfsg-1+deb9u3 | samba-vfs-modules_2:4.5.16+dfsg-1+deb9u3_amd64.deb |
Debian | 9 | armhf | libwbclient0 | < 2:4.5.16+dfsg-1+deb9u3 | libwbclient0_2:4.5.16+dfsg-1+deb9u3_armhf.deb |
Debian | 9 | arm64 | samba-vfs-modules | < 2:4.5.16+dfsg-1+deb9u3 | samba-vfs-modules_2:4.5.16+dfsg-1+deb9u3_arm64.deb |
Debian | 9 | i386 | samba-testsuite | < 2:4.5.16+dfsg-1+deb9u3 | samba-testsuite_2:4.5.16+dfsg-1+deb9u3_i386.deb |
Debian | 9 | arm64 | samba-dev | < 2:4.5.16+dfsg-1+deb9u3 | samba-dev_2:4.5.16+dfsg-1+deb9u3_arm64.deb |
Debian | 9 | amd64 | ctdb | < 2:4.5.16+dfsg-1+deb9u3 | ctdb_2:4.5.16+dfsg-1+deb9u3_amd64.deb |
Debian | 9 | amd64 | samba-dev | < 2:4.5.16+dfsg-1+deb9u3 | samba-dev_2:4.5.16+dfsg-1+deb9u3_amd64.deb |
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
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
8.5 High
AI Score
Confidence
Low
0.467 Medium
EPSS
Percentile
97.5%