CVE-2022-2347— Unchecked Download size in Uboot
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I. Basic Information for CVE-2022-2347
Vulnerability Information
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Vulnerability Title
Unchecked Download size in Uboot
Source: NVD (National Vulnerability Database)
Vulnerability Description
There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
DENX Software Engineering Das U-Boot 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DENX Software Engineering Das U-Boot是德国DENX Software Engineering公司的一个通用引导加载程序。 DENX Software Engineering Das U-Boot 存在安全漏洞，该漏洞源于USB DFU 中未选中的下载大小和方向，攻击者利用该漏洞可以写入超出堆分配的请求缓冲区。
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
II. Public POCs for CVE-2022-2347
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- https://seclists.org/oss-sec/2022/q3/41x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2022-2347
IV. Related Vulnerabilities
Same weakness: CWE-122
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Vim: Heap Buffer Overflow in spell file loading
V. Comments for CVE-2022-2347
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