CVE-2017-5618 Information

Description

GNU screen before 4.5.1 allows local users to modify arbitrary files and consequently gain root privileges by leveraging improper checking of logfile permissions.

CVSS Vector

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

Reference

http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8 http://git.savannah.gnu.org/cgit/screen.git/tree/src/ChangeLog?h=v.4.5.1 http://savannah.gnu.org/bugs/?50142 http://www.openwall.com/lists/oss-security/2017/01/29/3 http://www.securityfocus.com/bid/95873 https://lists.gnu.org/archive/html/screen-devel/2017-01/msg00025.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8