SB2022112846 - Multiple vulnerabilities in Cloud Foundry Foundation cflinuxfs3

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Main Vulnerability Database SB2022112846

SB2022112846 - Multiple vulnerabilities in Cloud Foundry Foundation cflinuxfs3

Published: November 28, 2022

Security Bulletin ID SB2022112846
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2013-4235)

The vulnerability allows a local user to delete or modify arbitrary files on the system.

The vulnerability exists due to a race condition in shadow-utils when executing usermod/userdel operations. A local user with write access to the directory that is being moved or deleted by the usermod/userdel commands can modify or delete arbitrary files on the system.

Successful exploitation of the vulnerability may allow an attacker to corrupt arbitrary files on the system and perform a denial of service (DoS) attack.


2) Insufficient Entropy (CVE-ID: CVE-2017-2626)

The vulnerability allows a local authenticated user to gain access to sensitive information.

It was discovered that libICE before 1.0.9-8 used a weak entropy to generate keys. A local attacker could potentially use this flaw for session hijacking using the information available from the process list.


Remediation

Install update from vendor's website.

References