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CVE-2024-43868— riscv/purgatory: align riscv_kernel_entry

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。攻击者利用该漏洞导致内核崩溃。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 736e30af583fb6e0e2b8211b894ff99dea0f1ee7< 10ffafb456f293976c42f700578ef740467cb569 affected
736e30af583fb6e0e2b8211b894ff99dea0f1ee7< 6e62dab357eea12db0fc62dea94c7a892888e6e8 affected
736e30af583fb6e0e2b8211b894ff99dea0f1ee7< 5d4aaf16a8255f7c71790e211724ba029609c5ff affected
736e30af583fb6e0e2b8211b894ff99dea0f1ee7< fb197c5d2fd24b9af3d4697d0cf778645846d6d5 affected
5.19 affected
< 5.19 unaffected
6.1.117≤ 6.1.* unaffected
6.6.61≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-43868

Vulnerability Information
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Vulnerability Title
riscv/purgatory: align riscv_kernel_entry
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: riscv/purgatory: align riscv_kernel_entry When alignment handling is delegated to the kernel, everything must be word-aligned in purgatory, since the trap handler is then set to the kexec one. Without the alignment, hitting the exception would ultimately crash. On other occasions, the kernel's handler would take care of exceptions. This has been tested on a JH7110 SoC with oreboot and its SBI delegating unaligned access exceptions and the kernel configured to handle them.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。攻击者利用该漏洞导致内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 736e30af583fb6e0e2b8211b894ff99dea0f1ee7 ~ 10ffafb456f293976c42f700578ef740467cb569 -
Linux Linux 5.19 -

II. Public POCs for CVE-2024-43868

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III. Intelligence Information for CVE-2024-43868

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Other References for CVE-2024-43868 (1)

Same Patch Batch · Linux · 2024-08-20 · 8 CVEs total

CVE-2024-43864 9.8 CRITICAL net/mlx5e: Fix CT entry update leaks of modify header context
CVE-2024-43861 net: usb: qmi_wwan: fix memory leak for not ip packets
CVE-2024-43862 net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex
CVE-2024-43863 drm/vmwgfx: Fix a deadlock in dma buf fence polling
CVE-2024-43865 s390/fpu: Re-add exception handling in load_fpu_state()
CVE-2024-43866 net/mlx5: Always drain health in shutdown callback
CVE-2024-43867 drm/nouveau: prime: fix refcount underflow

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-43868

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