Is CVE-2019-8321 in the CISA KEV catalog?

No. CVE-2019-8321 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-8321?

CVE-2019-8321 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-8321?

CVE-2019-8321 has an EPSS score of 3.37% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-8321?

Upgrade jruby on debian 12 to 9.1.17.0-3 or later. Fixes are available for 10 affected products.

CVE & CISA-KEV Catalog

CVE-2019-8321

HIGHEPSS 87th pctl

7.5

CVSS v3

NVD

Description

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::UserInteraction#verbose calls say without escaping, escape sequence injection is possible.

CWE-88

How to fix

Remediation Available

jrubyDebian

Fixed in:9.1.17.0-3CVE-2019-8321

libruby1.9.1Ubuntu

Fixed in:1.9.3.484-2ubuntu1.14USN-3945-1

libruby2.0Ubuntu

Fixed in:2.0.0.484-1ubuntu2.13USN-3945-1

libruby2.3Ubuntu

Fixed in:2.3.1-2~16.04.12USN-3945-1

libruby2.5Ubuntu

Fixed in:2.5.1-1ubuntu1.2USN-3945-1

ruby1.9.1Ubuntu

Fixed in:1.9.3.484-2ubuntu1.14USN-3945-1

ruby1.9.3Ubuntu

Fixed in:1.9.3.484-2ubuntu1.14USN-3945-1

ruby2.0Ubuntu

Fixed in:2.0.0.484-1ubuntu2.13USN-3945-1

ruby2.3Ubuntu

Fixed in:2.3.1-2~16.04.12USN-3945-1

ruby2.5Ubuntu

Fixed in:2.5.1-1ubuntu1.2USN-3945-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

3.37%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Third-Party Advisory3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.