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CVE-2022-2962

Quick assessment

Affected
n/a QEMU
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.

QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU 存在安全漏洞，该漏洞源于其Tulip设备仿真中发现了DMA重入问题。当 Tulip 读取或写入 rx/tx 描述符或复制 rx/tx 帧时，它不会检查目标地址是否为其自己的MMIO地址。这可能导致设备多次触发MMIO处理程序，从而导致栈或堆的缓冲区溢出。攻击者可能使用此漏洞使主机上的QEMU 进程崩溃，从而导致拒绝服务情况。

AI Predicted 6.8 Difficulty: Moderate EPSS 0.39% · P32

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-2962

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
QEMU 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU 存在安全漏洞，该漏洞源于其Tulip设备仿真中发现了DMA重入问题。当 Tulip 读取或写入 rx/tx 描述符或复制 rx/tx 帧时，它不会检查目标地址是否为其自己的MMIO地址。这可能导致设备多次触发MMIO处理程序，从而导致栈或堆的缓冲区溢出。攻击者可能使用此漏洞使主机上的QEMU 进程崩溃，从而导致拒绝服务情况。
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
- QEMU Will be fixed in QEMU 7.2.0-rc0 -

II. Public POCs for CVE-2022-2962

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III. Intelligence Information for CVE-2022-2962

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Patches & Fixes for CVE-2022-2962 (1)

Other References for CVE-2022-2962 (1)

Same Patch Batch · n/a · 2022-09-13 · 63 CVEs total

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CVE-2022-20385 Google Android 缓冲区错误漏洞
CVE-2022-3170 Linux kernel 缓冲区错误漏洞
CVE-2022-20387 Google Android 安全漏洞
CVE-2022-20388 Google Android 安全漏洞
CVE-2022-20389 Google Android 安全漏洞
CVE-2022-20390 Google Android 安全漏洞
CVE-2022-20391 Google Android 安全漏洞
CVE-2022-20392 Google Android 输入验证错误漏洞
CVE-2022-20393 Google Android 数字错误漏洞
CVE-2022-20395 Google Android 路径遍历漏洞

Showing top 20 of 63 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: QEMU
Same vendor: n/a
Same weakness: CWE-400

V. Comments for CVE-2022-2962

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