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ubuntuUbuntuUSN-4510-1
HistorySep 17, 2020 - 12:00 a.m.

Samba vulnerability

2020-09-1700:00:00
ubuntu.com
96

8.6 High

AI Score

Confidence

Low

0.451 Medium

EPSS

Percentile

97.4%

JSON

Releases

  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • samba - SMB/CIFS file, print, and login server for Unix

Details

Tom Tervoort discovered that the Netlogon protocol implemented by Samba
incorrectly handled the authentication scheme. A remote attacker could use
this issue to forge an authentication token and steal the credentials of
the domain admin.

This update fixes the issue by changing the “server schannel” setting to
default to “yes”, instead of “auto”, which will force a secure netlogon
channel. This may result in compatibility issues with older devices. A
future update may allow a finer-grained control over this setting.

OSVersionArchitecturePackageVersionFilename
Ubuntu18.04noarchsamba< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchctdb< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchctdb-dbgsym< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchlibnss-winbind< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchlibnss-winbind-dbgsym< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchlibpam-winbind< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchlibpam-winbind-dbgsym< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchlibparse-pidl-perl< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchlibsmbclient< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Ubuntu18.04noarchlibsmbclient-dbgsym< 2:4.7.6+dfsg~ubuntu-0ubuntu2.19UNKNOWN
Rows per page:
1-10 of 741

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8.6 High

AI Score

Confidence

Low

0.451 Medium

EPSS

Percentile

97.4%

JSON
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