SB2021031574 - Ubuntu update for singularity-container

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Main Vulnerability Database SB2021031574

SB2021031574 - Ubuntu update for singularity-container

Published: March 15, 2021 Updated: October 31, 2026

Security Bulletin ID SB2021031574
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) Race condition (CVE-ID: CVE-2018-12021)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists due to race condition. A remote attacker can bypass directory image restrictions, like mounting the host root filesystem as a container image and gain access to arbitrary data.


2) Input validation error (CVE-ID: CVE-2018-19295)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local attacker to perform improper input validation attack.

The vulnerability exists due to insufficient validation of user-supplied input. A local attacker can supply specially crafted application and cause the service to crash or execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References