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CVE-2017-12163

Published: 20 September 2017

An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.

Priority

Medium

Cvss 3 Severity Score

7.1

Score breakdown

Status

Package Release Status
samba
Launchpad, Ubuntu, Debian
upstream
Released (4.6.8,4.5.14,4.4.16)
precise
Released (2:3.6.25-0ubuntu0.12.04.13)
trusty
Released (2:4.3.11+dfsg-0ubuntu0.14.04.12)
xenial
Released (2:4.3.11+dfsg-0ubuntu0.16.04.11)
zesty
Released (2:4.5.8+dfsg-0ubuntu0.17.04.7)
artful
Released (2:4.6.7+dfsg-1ubuntu3)
Patches:
upstream: https://git.samba.org/?p=samba.git;a=commit;h=bf85c3d4ed7a4f1a0be4e16faf5d9b562940d33d (4.4)
upstream: https://git.samba.org/?p=samba.git;a=commit;h=a43b36f5514de38b8a072bfbeb172316045c2ad0 (4.5)
upstream: https://git.samba.org/?p=samba.git;a=commit;h=c848b104aa2293f55c14722d99cf788dafc442cb (4.6)

Severity score breakdown

Parameter Value
Base score 7.1
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact Low
Availability impact None
Vector CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N