Azure Linux 3.0 安全性更新核心 (CVE-2024-42246)

medium Nessus Plugin ID 215762

語言:

概要

遠端 Azure Linux 主機缺少一個或多個安全性更新。

說明

遠端 Azure Linux 3.0 主機上安裝的核心版本比測試版舊。因此，此版本會受到 CVE-2024-42246 公告中提及的一個弱點影響。

- 已解決 Linux 核心中的下列弱點：net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket When using a BPF program on kernel_connect(), the call can return -EPERM. This causes xs_tcp_setup_socket() to loop forever, filling up the syslog and causing the kernel to potentially freeze up. Neil suggested: This will propagate -EPERM up into other layers which might not be ready to handle it. It might be safer to map EPERM to an error we would be more likely to expect from the network system - such as ECONNREFUSED or ENETDOWN. ECONNREFUSED as error seems reasonable.
For programs setting a different error can be out of reach (see handling in 4fbac77d2d09) in particular on kernels which do not have f10d05966196 (bpf: Make BPF_PROG_RUN_ARRAY return -err instead of allow boolean), thus given that it is better to simply remap for consistent behavior. UDP does handle EPERM in xs_udp_send_request(). (CVE-2024-42246)

請注意，Nessus 並未測試此問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

解決方案

更新受影響的套件。

另請參閱

https://nvd.nist.gov/vuln/detail/CVE-2024-42246

Plugin 詳細資訊

嚴重性: Medium

ID: 215762

檔案名稱: azure_linux_CVE-2024-42246.nasl

版本: 1.1

類型: local

系列: Azure Linux Local Security Checks

已發布: 2025/2/10

已更新: 2025/2/10

支援的感應器: Nessus

風險資訊

VPR

風險因素: Medium

分數: 4.4

CVSS v2

風險因素: Medium

基本分數: 4.6

時間性分數: 3.4

媒介: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS 評分資料來源: CVE-2024-42246

CVSS v3

風險因素: Medium

基本分數: 5.5

時間性分數: 4.8

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

時間媒介: CVSS:3.0/E:U/RL:O/RC:C

弱點資訊

CPE: p-cpe:/a:microsoft:azure_linux:kernel-tools, p-cpe:/a:microsoft:azure_linux:kernel-devel, p-cpe:/a:microsoft:azure_linux:kernel-docs, p-cpe:/a:microsoft:azure_linux:kernel-cross-headers, p-cpe:/a:microsoft:azure_linux:bpftool, p-cpe:/a:microsoft:azure_linux:kernel-drivers-gpu, p-cpe:/a:microsoft:azure_linux:python3-perf, p-cpe:/a:microsoft:azure_linux:kernel, p-cpe:/a:microsoft:azure_linux:kernel-drivers-sound, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:kernel-headers, p-cpe:/a:microsoft:azure_linux:kernel-dtb, p-cpe:/a:microsoft:azure_linux:kernel-drivers-accessibility

必要的 KB 項目: Host/local_checks_enabled, Host/cpu, Host/AzureLinux/release, Host/AzureLinux/rpm-list

可輕鬆利用: No known exploits are available

修補程式發佈日期: 2024/10/8

弱點發布日期: 2024/8/7

參考資訊

CVE: CVE-2024-42246