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Kubernetes CVE-2023-45288

Moderate
jpculp published GHSA-c9wf-j9h6-m2r9 Jul 18, 2024

Package

kubernetes-1.23 (bottlerocket)

Affected versions

< 1.20.4

Patched versions

1.20.4
kubernetes-1.24 (bottlerocket)
< 1.20.4
1.20.4
kubernetes-1.25 (bottlerocket)
< 1.20.4
1.20.4
kubernetes-1.26 (bottlerocket)
< 1.20.4
1.20.4

Description

A flaw was detected in the http2 library. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This could lead to an HTTP/2 endpoint to read arbitrary amounts of header data.

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVE ID

CVE-2023-45288

Weaknesses

No CWEs