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

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.2
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.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Basesystem 15
  • screen >= 4.6.2-3.14
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 GA screen
openSUSE Leap 15.0
  • screen >= 4.6.2-lp150.3.8
Patchnames:
openSUSE Leap 15.0 GA screen


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 12 SP1 screen Not affected
SUSE Linux Enterprise Desktop 12 SP2 screen Not affected
SUSE Linux Enterprise Server 11 SP4 screen Not affected
SUSE Linux Enterprise Server 12 SP1 screen Not affected
SUSE Linux Enterprise Server 12 SP2 screen Not affected