CVE-2023-4133
Kernel: cxgb4: use-after-free in ch_flower_stats_cb()
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.23% · top 86% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
Red Hat · Red Hat Enterprise Linux 8
- unaffected 0:4.18.0-553.rt7.342.el8_10 – < *
Red Hat · Red Hat Enterprise Linux 8
- unaffected 0:4.18.0-553.el8_10 – < *
Red Hat · Red Hat Enterprise Linux 9
- unaffected 0:5.14.0-427.13.1.el9_4 – < *
Red Hat · Red Hat Enterprise Linux 9
- unaffected 0:5.14.0-427.13.1.el9_4 – < *
Red Hat · Red Hat Enterprise Linux 6
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unknown
Red Hat · Red Hat Enterprise Linux 9
All versions: affected
References (5)
- RHSA-2024:2394 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2024:2950 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2024:3138 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://access.redhat.com/security/cve/CVE-2023-4133 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2221702 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-4133)Record last updated .