CVE-2023-54074
Description
A flaw was found in the mlx5e Traffic Control (TC) encapsulation logic in the net/mlx5e driver of the Linux kernel. The code responsible for invalidating encapsulation actions did not use the proper helper function to retrieve the correct encapsulation attribute, instead assuming the default attribute would suffice. When the post-action infrastructure was introduced, most users of the encap attribute were updated to call mlx5e_tc_get_encap_attr() to obtain the correct attribute; however, the invalidation path in mlx5e_invalidate_encap() was not updated accordingly. This could result in improper destruction of header modify actions and generate WARNINGS in the kernel log.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 3.6 | N/A | 7.8 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | High | N/A | Low |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | High |
| Integrity Impact | Low | N/A | High |
| Availability Impact | None | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Other
Technical Impact: Other
Frequently Asked Questions
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