Upstream information

CVE-2018-20482 at MITRE

Description

GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 1.9
Vector AV:L/AC:M/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 4.7 5.5
Vector AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Access Vector Local Local
Access Complexity High Low
Privileges Required Low None
User Interaction None Required
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
SUSE Bugzilla entry: 1120610 [NEW]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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
CaaS Platform 2.0 tar Affected
CaaS Platform 3.0 tar Affected
OpenStack Cloud Magnum Orchestration 7.0 tar Affected
SUSE Linux Enterprise Desktop 12 SP3 tar Affected
SUSE Linux Enterprise Desktop 12 SP4 tar Affected
SUSE Linux Enterprise High Performance Computing 12 tar Affected
SUSE Linux Enterprise Module for Basesystem 15 GA tar Affected
SUSE Linux Enterprise Server 11 SP3 LTSS tar Affected
SUSE Linux Enterprise Server 11 SP4 tar Affected
SUSE Linux Enterprise Server 12 GA LTSS tar Affected
SUSE Linux Enterprise Server 12 SP1 LTSS tar Affected
SUSE Linux Enterprise Server 12 SP2 LTSS tar Affected
SUSE Linux Enterprise Server 12 SP3 tar Affected
SUSE Linux Enterprise Server 12 SP4 tar Affected
SUSE Linux Enterprise Server for SAP Applications 11 SP3 tar Affected
SUSE Linux Enterprise Server for SAP Applications 12 GA tar Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 tar Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 tar Affected