Linux Distros 未修補弱點:CVE-2024-39508

high Nessus Plugin ID 228815

概要

Linux/Unix 主機上安裝的一個或多個套件存有弱點,供應商表示將不會修補。

說明

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件,且供應商未提供可用的修補程式。

- 在 Linux 核心中,已解決下列弱點: io_uring/io-wq: Use set_bit() and test_bit() at worker->flags Utilize set_bit() and test_bit() on worker->flags within io_uring/io-wq to address potential data races. The structure io_worker->flags may be accessed through various data paths, leading to concurrency issues. When KCSAN is enabled, it reveals data races occurring in io_worker_handle_work and io_wq_activate_free_worker functions. BUG: KCSAN: data-race in io_worker_handle_work / io_wq_activate_free_worker write to 0xffff8885c4246404 of 4 bytes by task 49071 on cpu 28: io_worker_handle_work (io_uring/io-wq.c:434 io_uring/io-wq.c:569) io_wq_worker (io_uring/io-wq.c:?) <snip> read to 0xffff8885c4246404 of 4 bytes by task 49024 on cpu 5: io_wq_activate_free_worker (io_uring/io-wq.c:? io_uring/io-wq.c:285) io_wq_enqueue (io_uring/io-wq.c:947) io_queue_iowq (io_uring/io_uring.c:524) io_req_task_submit (io_uring/io_uring.c:1511) io_handle_tw_list (io_uring/io_uring.c:1198) <snip> Line numbers against commit 18daea77cca6 (Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm). These races involve writes and reads to the same memory location by different tasks running on different CPUs. To mitigate this, refactor the code to use atomic operations such as set_bit(), test_bit(), and clear_bit() instead of basic and and or operations. This ensures thread-safe manipulation of worker flags. Also, move `create_index` to avoid holes in the structure. (CVE-2024-39508)

請注意,Nessus 依賴供應商報告的套件存在。

解決方案

目前尚未有已知的解決方案。

Plugin 詳細資訊

嚴重性: High

ID: 228815

檔案名稱: unpatched_CVE_2024_39508.nasl

版本: 1.1

類型: local

代理程式: unix

系列: Misc.

已發布: 2025/3/5

已更新: 2025/3/5

支援的感應器: Nessus Agent, Nessus

風險資訊

VPR

風險因素: Medium

分數: 5.9

CVSS v2

風險因素: Medium

基本分數: 6

時間性分數: 4.4

媒介: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C

CVSS 評分資料來源: CVE-2024-39508

CVSS v3

風險因素: High

基本分數: 7

時間性分數: 6.1

媒介: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

時間媒介: CVSS:3.0/E:U/RL:O/RC:C

弱點資訊

必要的 KB 項目: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched

可輕鬆利用: No known exploits are available

弱點發布日期: 2024/7/12

參考資訊

CVE: CVE-2024-39508