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Keylime CVE-2022-3500

MEDIUM
Uncaught Exception (CWE-248)
2022-11-22 secalert@redhat.com
5.1
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Exception handling completeness
Impact

CVSS score of 5.1 (MEDIUM). Attack characteristics: local attack vector, high complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAI

A vulnerability was found in keylime. Rated medium severity (CVSS 5.1), this vulnerability is no authentication required.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

pypi keylime fix: 6.5.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in pypi

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-248. A vulnerability was found in keylime. This security issue happens in some circumstances, due to some improperly handled exceptions, there exists the possibility that a rogue agent could create errors on the verifier that stopped attestation attempts for that host leaving it in an attested state but not verifying that anymore. Affected products include: Keylime, Redhat Enterprise Linux, Fedoraproject Fedora.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.1 MEDIUM
AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

A vulnerability was found in keylime. This security issue happens in some circumstances, due to some improperly handled exceptions, there exists the possibility that a rogue agent could create errors on the verifier that stopped attestation attempts for that host leaving it in an attested state but not verifying that anymore.

Threat Intelligence Overview

EPSS Score
0.2%
Top 84% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:keylime:keylime:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
CVE-2022-23952 HIGH POC
7.5 Sep 21

In Keylime before 6.3.0, current keylime installer installs the keylime.conf file, which can contain sensitive data, as

CVE-2022-23950 HIGH POC
7.5 Sep 21

In Keylime before 6.3.0, Revocation Notifier uses a fixed /tmp path for UNIX domain socket which can allow unprivileged

CVE-2022-23949 HIGH POC
7.5 Sep 21

In Keylime before 6.3.0, unsanitized UUIDs can be passed by a rogue agent and can lead to log spoofing on the verifier a

CVE-2022-23948 HIGH POC
7.5 Sep 21

A flaw was found in Keylime before 6.3.0. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no

CVE-2026-1709 CRITICAL
9.8 Feb 06

Authentication bypass in the Keylime registrar (versions 7.12.0 and later) lets unauthenticated network attackers perfor

CVE-2021-3406 CRITICAL
9.8 Feb 25

A flaw was found in keylime 5.8.1 and older. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploita

CVE-2022-23951 MEDIUM POC
5.5 Sep 21

In Keylime before 6.3.0, quote responses from the agent can contain possibly untrusted ZIP data which can lead to zip bo

CVE-2022-1053 CRITICAL
9.1 May 06

Keylime does not enforce that the agent registrar data is the same when the tenant uses it for validation of the EK and

CVE-2023-38200 HIGH
7.5 Jul 24

A flaw was found in Keylime. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authenticati

CVE-2023-38201 MEDIUM
6.5 Aug 25

A flaw was found in the Keylime registrar that could allow a bypass of the challenge-response protocol during agent regi

CVE-2023-3674 LOW
2.8 Jul 19

A flaw was found in the keylime attestation verifier, which fails to flag a device's submitted TPM quote as faulty when

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