Arch Linux Security Advisory ASA-201705-11

Severity: High
Date : 2017-05-10
CVE-ID : CVE-2017-8849
Package : smb4k
Type : privilege escalation
Remote : No
Link : https://security.archlinux.org/AVG-268

Summary

The package smb4k before version 2.0.0-2 is vulnerable to privilege
escalation.

Resolution

Upgrade to 2.0.0-2.

pacman -Syu “smb4k>=2.0.0-2”

The problem has been fixed upstream but no release is available yet.

Workaround

None.

Description

Smb4k <= 2.0.0 contains a logic flaw in which mount helper binary does
not properly verify the mount command it is being asked to run. This
allows calling any other binary as root since the mount helper is
typically installed as suid.

Impact

A local, unprivileged attacker can escalate privileges to become root
on the affected host.

References

https://www.kde.org/info/security/advisory-20170510-2.txt
http://seclists.org/oss-sec/2017/q2/240
https://commits.kde.org/smb4k/a90289b0962663bc1d247bbbd31b9e65b2ca000e
https://security.archlinux.org/CVE-2017-8849