SB2023091230 - Red Hat Enterprise Linux 9 update for keylime

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Main Vulnerability Database SB2023091230

SB2023091230 - Red Hat Enterprise Linux 9 update for keylime

Published: September 12, 2023

Security Bulletin ID SB2023091230
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2023-38200)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the registrar. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


2) Improper Authentication (CVE-ID: CVE-2023-38201)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:U/U:Clear


The vulnerability allows a local user to bypass authentication.

The vulnerability exists due to an error in the challenge-response protocol implementation during agent registration. A local user can  impersonate an agent and hide the true status of a monitored machine if the fake agent is added to the verifier list by a legitimate user, resulting in a breach of the integrity of the registrar database.


Remediation

Install update from vendor's website.

References