CVE-2022-28734— Out-of-bounds write when handling split HTTP headers
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I. Basic Information for CVE-2022-28734
Vulnerability Information
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Vulnerability Title
Out-of-bounds write when handling split HTTP headers
Source: NVD (National Vulnerability Database)
Vulnerability Description
Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2's internal memory metadata.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
grub2 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
grub2是美国GNU社区的一款Linux系统引导程序。 grub2存在缓冲区错误漏洞，该漏洞源于处理拆分HTTP header时出现越界写入。
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 |
|---|---|---|---|---|
| GNU Project | GNU GRUB | 0 ~ 2.06-3 | - |
II. Public POCs for CVE-2022-28734
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · GNU Project · 2023-07-20 · 4 CVEs total
| CVE-2022-28733 | 8.1 HIGH | Integer underflow in grub_net_recv_ip4_packets |
| CVE-2022-28735 | 6.7 MEDIUM | grub2 数据伪造问题漏洞 |
| CVE-2022-28736 | 6.4 MEDIUM | There's a use-after-free vulnerability in grub_cmd_chainloader() function |
IV. Related Vulnerabilities
V. Comments for CVE-2022-28734
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