CVE-2021-3592
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I. Basic Information for CVE-2021-3592
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用未经初始化的指针
Source: NVD (National Vulnerability Database)
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 的 slirp 存在缓冲区错误漏洞，该漏洞源于src/bootp.c 中的 bootp_input() 函数在处理来自来宾的小于 bootp_t 结构（548 字节）大小的 bootp 协议请求的 udp 数据包时，它使用工作 mbuf 缓冲区外部的内存。这可能会导致 10 字节未初始化的堆内存泄漏给来宾。
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 | libslirp 4.6.0 | - |
II. Public POCs for CVE-2021-3592
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://security.gentoo.org/glsa/202107-44vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-3592
Same Patch Batch · n/a · 2021-06-15 · 16 CVEs total
| CVE-2021-23395 | 7.3 HIGH | Prototype Pollution |
| CVE-2021-28857 | TP-Link TL-WPA4220 信息泄露漏洞 | |
| CVE-2021-28858 | TP-Link TL-WPA4220 信息泄露漏洞 | |
| CVE-2020-29215 | SourceCodester Employee Management System 跨站脚本漏洞 | |
| CVE-2020-29214 | SourceCodester Alumni Management System SQL注入漏洞 | |
| CVE-2021-27388 | Siemens SINAMICS SL150 输入验证错误漏洞 | |
| CVE-2021-33622 | Singularity 代码问题漏洞 | |
| CVE-2021-33887 | Peloton TTR01 数据伪造问题漏洞 | |
| CVE-2020-21316 | ZrLog 跨站脚本漏洞 | |
| CVE-2021-34170 | Bandai Namco FromSoftware Dark Souls III 安全漏洞 | |
| CVE-2021-34128 | LaikeTui 代码问题漏洞 | |
| CVE-2021-34129 | LaikeTui 路径遍历漏洞 | |
| CVE-2021-3593 | QEMU 缓冲区错误漏洞 | |
| CVE-2021-3594 | QEMU 缓冲区错误漏洞 | |
| CVE-2021-3595 | QEMU 缓冲区错误漏洞 |
IV. Related Vulnerabilities
Same vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
Same weakness: CWE-824
V. Comments for CVE-2021-3592
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