Vulnerability in Kernel (CVE-2023-54131)

Summary

Vulnerability in Kernel (CVE-2023-54131). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 5.15.111, 6.1.28, 6.2.15, 6.3.2 or later.

Original description

The description as published by the source.

In the Linux kernel, the following vulnerability has been resolved:

wifi: rt2x00: Fix memory leak when handling surveys

When removing a rt2x00 device, its associated channel surveys
are not freed, causing a memory leak observable with kmemleak:

unreferenced object 0xffff9620f0881a00 (size 512):
comm "systemd-udevd", pid 2290, jiffies 4294906974 (age 33.768s)
hex dump (first 32 bytes):
70 44 12 00 00 00 00 00 92 8a 00 00 00 00 00 00 pD..............
00 00 00 00 00 00 00 00 ab 87 01 00 00 00 00 00 ................
backtrace:
[] __kmalloc+0x4b/0x130
[] rt2800_probe_hw+0xc2b/0x1380 [rt2800lib]
[] rt2800usb_probe_hw+0xe/0x60 [rt2800usb]
[] rt2x00lib_probe_dev+0x21a/0x7d0 [rt2x00lib]
[] rt2x00usb_probe+0x1be/0x980 [rt2x00usb]
[] usb_probe_interface+0xe2/0x310 [usbcore]
[] really_probe+0x1a5/0x410
[] __driver_probe_device+0x78/0x180
[] driver_probe_device+0x1e/0x90
[] __driver_attach+0xd2/0x1c0
[] bus_for_each_dev+0x77/0xd0
[] bus_add_driver+0x112/0x210
[] driver_register+0x5c/0x120
[] usb_register_driver+0x88/0x150 [usbcore]
[] do_one_initcall+0x44/0x220
[] do_init_module+0x4c/0x220

Fix this by freeing the channel surveys on device removal.

Tested with a RT3070 based USB wireless adapter.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2023-54131 has been found in Kernel.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Kernel to 5.15.111, 6.1.28, 6.2.15, 6.3.2 or later.
If unsure, ask your IT team or search "Kernel CVE-2023-54131" on the vendor's site.

CVE-2023-54131 (Kernel)
Patched: 5.15.111, 6.1.28, 6.2.15, 6.3.2 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (unclassified) exists in Kernel.

📍 Affected scope

Check the vendor advisory for the affected versions of Kernel.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 5.15.111, 6.1.28, 6.2.15, 6.3.2.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Kernel' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposure identify
```
grep -r 'Kernel' . | grep -v node_modules
```
リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で Kernel を grep し、稼働しているサービス・バージョンを把握する。
2
Apply patch patch
```
Upgrade Kernel to 5.15.111, 6.1.28, 6.2.15, 6.3.2
```
ステージング環境で 5.15.111, 6.1.28, 6.2.15, 6.3.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
3
Post-deployment verification verify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Linux Kernel

[{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.28"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.15"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.3.0"},{"fixed":"6.3.2"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

Debian DEBIAN-CVE-2023-54131 linux Fixed in: 6.1.37-1
Ubuntu UBUNTU-CVE-2023-54131 linux-hwe-edge