CVE-2022-28733— Integer underflow in grub_net_recv_ip4_packets
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I. Basic Information for CVE-2022-28733
Vulnerability Information
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Vulnerability Title
Integer underflow in grub_net_recv_ip4_packets
Source: NVD (National Vulnerability Database)
Vulnerability Description
Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.
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
整数下溢(超界折返)
Source: NVD (National Vulnerability Database)
Vulnerability Title
grub2 数字错误漏洞
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存在数字错误漏洞，该漏洞源于grub_net_recv_ip4_packets整数下溢。
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-2022-28733
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · GNU Project · 2023-07-20 · 4 CVEs total
| CVE-2022-28734 | 8.1 HIGH | Out-of-bounds write when handling split HTTP headers |
| 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 |
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V. Comments for CVE-2022-28733
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