SB2018071125 - OpenSUSE Linux update for nextcloud

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Main Vulnerability Database SB2018071125

SB2018071125 - OpenSUSE Linux update for nextcloud

Published: July 11, 2018

Security Bulletin ID SB2018071125
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper input validation (CVE-ID: CVE-2018-3761)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to insufficient input validation. A remote attacker with access to the OAuth2 refresh token can trick the victim into opening a specially crafted data and obtain new tokens.


2) Information disclosure (CVE-ID: CVE-2018-3762)

CWE-ID: CWE-273 - Improper Check for Dropped Privileges

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote authenticated attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to a missing check for read permissions. A remote attacker who receive an incomming share containing files tagged can still request a preview for arbitrary files.


Remediation

Install update from vendor's website.

References