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CVE Record

CVE-2020-17368: Firejail through 0.9.62 mishandles shell metacharacters during use of the --output or --output-stderr optio...

Firejail through 0.9.62 mishandles shell metacharacters during use of the --output or --output-stderr option, which may lead to command injection.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Firejail through 0.9.62 can mishandle special shell characters when output redirection options are used. If an attacker can influence those option values, command injection may occur under the privileges of the Firejail-invoking user.

Executive priority

Treat as a targeted remediation item, not an emergency from available evidence. Prioritize internet-facing or multi-user systems where Firejail command lines are built from untrusted input.

Technical view

CVE-2020-17368 concerns shell metacharacter handling in Firejail's --output and --output-stderr options. The public record states this may lead to command injection. The bundle provides distro advisories but no CVSS vector, CWE, exploit detail, or universal upstream fix version beyond affected versions through 0.9.62.

Likely exposure

Exposure is most likely on Linux systems with Firejail through 0.9.62, especially scripts or launchers that pass user-controlled values to --output or --output-stderr.

Exploitation context

The source bundle does not show KEV listing or active exploitation evidence. Practical risk depends on whether untrusted input reaches the affected Firejail options.

Researcher notes

Evidence is sparse in the provided bundle: no CVSS, CWE, proof-of-concept status, or detailed patch note is included. The core issue is command injection through shell metacharacter mishandling in two Firejail options.

Mitigation direction

  • Upgrade Firejail using vendor packages from Debian, Fedora, openSUSE, Gentoo, or upstream guidance.
  • Avoid passing untrusted values to --output or --output-stderr.
  • Review automation that constructs Firejail command lines dynamically.
  • Check distribution advisories for supported fixed package versions.

Validation and detection

  • Inventory Firejail installations and identify versions through 0.9.62.
  • Search scripts, launchers, and service wrappers for --output or --output-stderr usage.
  • Confirm whether option values can be influenced by untrusted users or data.
  • Verify patched packages are installed from the relevant vendor advisory channel.
Prepared
Confidence
medium
Sources
7

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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Execution behavior lookup

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CVE-2020-17368 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.