CVE-2013-4203: The self.run_gpg function in lib/rgpg/gpg_helper.rb in the rgpg gem before 0.2.3 for Ruby allows remote attack

Q: How do I fix CVE-2013-4203?

rgpg: upgrade to newer than 0.2.2. Exact commands for each OS are on this page.

Q: Is CVE-2013-4203 being exploited?

CVE-2013-4203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2013-4203 affect?

CVE-2013-4203 affects rgpg. Severity is high (CVSS 7.5). The self.run_gpg function in lib/rgpg/gpg_helper.rb in the rgpg gem before 0.2.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in unspecified vectors.

Q: How urgent is CVE-2013-4203?

Priority 52/100. High severity; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2013-4203 is a high-severity flaw (CVSS 7.5) affecting rgpg. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The self.run_gpg function in lib/rgpg/gpg_helper.rb in the rgpg gem before 0.2.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in unspecified vectors.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Weakness	CWE-94
Published	2013-10-11
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: richard cook

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-10-11 22:55 UTCPublished CVE record published
2026-06-16 23:56 UTCUpdated Record last modified

richard cook rgpg UPGRADE

Affected: <= 0.2.2 · 0.2.0 · 0.2.1

Fixed in: newer than 0.2.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rgpg || rpm -q rgpg || rgpg --version

2. UPGRADE to newer than 0.2.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rgpg

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rgpg

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-4203?

rgpg: upgrade to newer than 0.2.2. Exact commands for each OS are on this page.

Is CVE-2013-4203 being exploited?

CVE-2013-4203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-4203 affect?

CVE-2013-4203 affects rgpg. Severity is high (CVSS 7.5). The self.run_gpg function in lib/rgpg/gpg_helper.rb in the rgpg gem before 0.2.3 for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in unspecified vectors.

How urgent is CVE-2013-4203?

Priority 52/100. High severity; Public exploit reference

Software pages

Ruby vulnerabilities

References

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