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CVE-2021-3713

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 UAS 中存在缓冲区错误漏洞，该漏洞源于产品未检查访客提供的号码从而导致对UASDevice->data3 和 UASDevice->status3的越界访问。攻击者可通过该漏洞导致QEMU崩溃。

AI Predicted 8.8 Difficulty: Hard EPSS 0.57% · P47

Possible ATT&CK Techniques 1 AI

T1055.008 · Ptrace System Calls
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I. Basic Information for CVE-2021-3713

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the host.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
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 UAS 中存在缓冲区错误漏洞，该漏洞源于产品未检查访客提供的号码从而导致对UASDevice->data3 和 UASDevice->status3的越界访问。攻击者可通过该漏洞导致QEMU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
- QEMU qemu 6.2.0-rc0 -

II. Public POCs for CVE-2021-3713

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III. Intelligence Information for CVE-2021-3713

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Vendor Advisories for CVE-2021-3713 (4)

Mailing List Discussions for CVE-2021-3713 (2)

Same Patch Batch · n/a · 2021-08-25 · 38 CVEs total

CVE-2021-33885 10.0 CRITICAL B.Braun SpaceCom2 数据伪造问题漏洞
CVE-2021-33886 8.1 HIGH B. Braun SpaceCom2 格式化字符串错误漏洞
CVE-2021-33882 6.8 MEDIUM B. Braun SpaceCom2 访问控制错误漏洞
CVE-2021-33884 6.5 MEDIUM B.Braun SpaceCom2 代码问题漏洞
CVE-2021-33883 5.9 MEDIUM B. Braun SpaceCom2 安全漏洞
CVE-2021-32995 Horner Automation Cscape 缓冲区错误漏洞
CVE-2021-32975 Horner Automation Cscape 缓冲区错误漏洞
CVE-2020-18976 Appneta Tcpreplay 缓冲区错误漏洞
CVE-2020-18974 Netwide Assembler 缓冲区错误漏洞
CVE-2020-18972 Sourceforge PoDoFo 信息泄露漏洞
CVE-2020-18971 Sourceforge PoDoFo 缓冲区错误漏洞
CVE-2018-10790 Bento4 安全漏洞
CVE-2021-40086 Primekey Solutions PrimeKey EJBCA 信息泄露漏洞
CVE-2021-40087 Primekey Solutions PrimeKey EJBCA 安全漏洞
CVE-2021-40088 Primekey Solutions PrimeKey EJBCA 安全漏洞
CVE-2021-40089 Primekey Solutions PrimeKey EJBCA 安全漏洞
CVE-2021-40083 Knot Resolver 安全漏洞
CVE-2021-40084 opensysusers 代码注入漏洞
CVE-2021-3605 Industrial Light And Magic（lim） OpenEXR 缓冲区错误漏洞
CVE-2021-21849 GPAC Project Advanced Content 缓冲区错误漏洞

Showing top 20 of 38 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: QEMU
Same vendor: n/a
Same weakness: CWE-787