CVE & CISA-KEV Catalog

CVE-2023-38200

HIGHEPSS 71th pctl
7.5
CVSS v3
NVD

Description

A flaw was found in Keylime. Due to their blocking nature, the Keylime registrar is subject to a remote denial of service against its SSL connections. This flaw allows an attacker to exhaust all available connections.

How to fix

Remediation Available
keylimeRed Hat / RHEL
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylimeRocky
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-baseRed Hat / RHEL
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-baseRocky
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-registrarRocky
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-registrarRed Hat / RHEL
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-selinuxRocky
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-selinuxRed Hat / RHEL
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-tenantRocky
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-tenantRed Hat / RHEL
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-verifierRed Hat / RHEL
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
keylime-verifierRocky
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
python3-keylimeRocky
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
python3-keylimeRed Hat / RHEL
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080
Fixed in:0:6.5.2-6.el9_2RHSA-2023:5080

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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
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

1.44%probability of exploitation in 30 days
71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-44487High7.5100%KEVFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2011-3192High7.899%-Fix
CVE-2019-11478Medium5.395%-Fix
CVE-2023-21547High7.589%-Fix
CVE-2024-25617Medium5.389%-Fix

Common questions

How do I fix CVE-2023-38200?

Published advisories record a fix for 14 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2023-38200 being actively exploited?

Not that we know of. CVE-2023-38200 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 71% of all scored CVEs.

How severe is CVE-2023-38200?

CVE-2023-38200 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2023-38200 affect?

Published advisories record a fix for keylime (Red Hat / RHEL), keylime (Rocky), keylime-base (Red Hat / RHEL), keylime-base (Rocky), and 10 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2023-38200 severity badge

Markdown

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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.