Upstream information

CVE-2017-5618 at MITRE

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.

SUSE information

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.15
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.8
Vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High

Note from the SUSE Security Team

The screen binary on SUSE Linux Enterprise and openSUSE is not built with setuid or setgid rights, so this issue does not affect the shipped screen packages.

SUSE Bugzilla entry: 1021743 [RESOLVED / WORKSFORME]

No SUSE Security Announcements cross referenced.