Improper input validation in smb4k - CVE-2017-8849

 

Improper input validation in smb4k - CVE-2017-8849

Published: May 23, 2017 / Updated: September 14, 2018


Vulnerability identifier: #VU6661
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-8849
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a local user to elevate privileges.

The vulnerability exists due to an input validation error when verify arguments, sent to the mount helper DBUS service.A local user can send a specially crafted request and execute arbitrary code on the system with root privileges.

Affected software

smb4k

Arch Linux
Debian Linux
Fedora
Opensuse
Gentoo net-misc/smb4k
smb4k

How to mitigate CVE-2017-8849

Update to version 2.0.1.

smb4k - addressed in versions 1.2.2-3.fc24, 1.2.2-3.fc25, 1.2.2-3.fc26, 1.2.3-1.fc26

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins