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CVE-2023-38200

UNKNOWN
Published 2023-07-24T15:19:19.291Z
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CVSS Score

V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.316
Higher than 31.6% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Red Hat

Red Hat Enterprise Linux 9

Affected Versions:

0:6.5.2-6.el9_2

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

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

GHSA-pg75-v6fp-8q59

Advisory Details

### Impact Keylime `registrar` is prone to a simple denial of service attack in which an adversary opens a connection to the TLS port (by default, port `8891`) blocking further, legitimate connections. As long as the connection is open, the `registrar` is blocked and cannot serve any further clients (`agents` and `tenants`), which prevents normal operation. The problem does not affect the `verifier`. ### Patches Users should upgrade to release 7.4.0

Affected Packages

PyPI keylime
ECOSYSTEM: ≥0 <7.4.0

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

WEB https://github.com/keylime/keylime/security/advisories/GHSA-pg75-v6fp-8q59
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-38200
WEB https://github.com/keylime/keylime/pull/1421
WEB https://github.com/keylime/keylime/commit/c68d8f0b7ea549c12b6956ab0f3c28ae0360ae17
WEB https://access.redhat.com/security/cve/CVE-2023-38200
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2222692
PACKAGE https://github.com/keylime/keylime
WEB https://github.com/keylime/keylime/releases/tag/v7.4.0

Advisory provided by GitHub Security Advisory Database. Published: August 1, 2023, Modified: August 1, 2023

References

https://access.redhat.com/errata/RHSA-2023:5080
https://access.redhat.com/security/cve/CVE-2023-38200
https://bugzilla.redhat.com/show_bug.cgi?id=2222692
https://github.com/keylime/keylime/pull/1421
Published: 2023-07-24T15:19:19.291Z
Last Modified: 2024-11-23T00:13:31.149Z
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