CVE-2020-25039: Insecure permissions on user namespace / fakeroot temporary rootfs in Singularity

CVE-2020-25039 · Severity: low · CVSS 3.1 · Published 2021-12-20

Insecure permissions on user namespace / fakeroot temporary rootfs in Singularity

Technologies: github.com/sylabs/singularity (Go). Vendors: Go.

Quick answers

Is CVE-2020-25039 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-25039 being exploited in the wild.
How severe is CVE-2020-25039?
Low severity, with a CVSS score of 3.1, published 20 December 2021.
Which products and versions are affected?
github.com/sylabs/singularity (Go) SEMVER:introduced=3.2.0,fixed=3.6.3.
Is there a fix for CVE-2020-25039?
Yes. github.com/sylabs/singularity (Go): upgrade to 3.6.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-25039?
Check whether you run github.com/sylabs/singularity (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/sylabs/singularity (Go): upgrade to 3.6.3 or later
    go get github.com/sylabs/singularity@v3.6.3

Affected products

  • github.com/sylabs/singularity (Go) SEMVER:introduced=3.2.0,fixed=3.6.3

Identifiers

  • CVE-2020-25039
  • GHSA-w6v2-qchm-grj7

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