CVE-2017-7494

Publication date 24 May 2017

Last updated 25 August 2025

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.

Status

Package Ubuntu Release Status
samba 17.04 zesty
Fixed 2:4.5.8+dfsg-0ubuntu0.17.04.2
16.10 yakkety
Fixed 2:4.4.5+dfsg-2ubuntu5.6
16.04 LTS xenial
Fixed 2:4.3.11+dfsg-0ubuntu0.16.04.7
14.04 LTS trusty
Fixed 2:4.3.11+dfsg-0ubuntu0.14.04.8

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references