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CVE-2023-38200

22
FAUCET Score

CVE-2023-38200 is a denial-of-service vulnerability affecting Keylime, including distributions from fedoraproject and redhat. This flaw allows a remote attacker to exhaust all available SSL connections to the Keylime registrar, leading to a denial of service. With a CVSS score of 7.5 (High), it requires no user interaction or privileges, but only impacts availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:keylime:keylime:-:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
9.2CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_eus:9.2:*:*:*:*:*:*:*
9.0_s390xCPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.0_s390x:*:*:*:*:*:*:*
9.2_s390xCPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.2_s390x:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.44%
Probability of exploitation in next 30 days
EPSS Percentile
70.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0144 is in the 52nd percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: keylimeFixed in: 7.4.0
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: keylime-0:6.5.2-6.el9_2
View patch

Vendor Advisories (2)

pipGHSA-pg75-v6fp-8q59high

Keylime's registrar vulnerable to Denial-of-service attack via a single open connection

Aug 1, 2023
redhatCVE-2023-38200Moderate

keylime: registrar is subject to a DoS against SSL connections

Jul 12, 2023

References

lists.fedoraproject.org / archives/list/[email protected]/message/ZIZZB5NHNCS5D2AEH3ZAO6OQC72IK7WS
access.redhat.com / errata/RHSA-2023:5080
Third Party Advisory
access.redhat.com / security/cve/CVE-2023-38200
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / keylime/keylime/pull/1421
Patch