CVE-2017-5940 Information

Description

Firejail before 0.9.44.6 and 0.9.38.x LTS before 0.9.38.10 LTS does not comprehensively address dotfile cases during its attempt to prevent accessing user files with an euid of zero which allows local users to conduct sandbox-escape attacks via vectors involving a symlink and the –private option. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-5180.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Reference

http://www.openwall.com/lists/oss-security/2017/01/31/16 http://www.securityfocus.com/bid/96221 https://firejail.wordpress.com/download-2/release-notes/ https://github.com/netblue30/firejail/commit/38d418505e9ee2d326557e5639e8da49c298858f https://github.com/netblue30/firejail/commit/903fd8a0789ca3cc3c21d84cd0282481515592ef https://github.com/netblue30/firejail/commit/b8a4ff9775318ca5e679183884a6a63f3da8f863 https://security.gentoo.org/glsa/201702-03

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8