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kernel CVE-2023-26545

High
etungsten published GHSA-fwgv-c3pv-7cg9 Apr 17, 2023

Package

kernel-5.10 (bottlerocket)

Affected versions

< 1.13.3

Patched versions

1.13.3
kernel-5.15 (bottlerocket)
< 1.13.3
1.13.3

Description

A double free flaw was found in MPLS. During device renaming the registration of sysctl table can fail leading to double freeing of the structure.

Severity

High

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
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVE ID

CVE-2023-26545

Weaknesses

No CWEs