CVE-2023-3603— Processing sftp server read may cause null dereference
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I. Basic Information for CVE-2023-3603
Vulnerability Information
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Vulnerability Title
Processing sftp server read may cause null dereference
Source: NVD (National Vulnerability Database)
Vulnerability Description
A missing allocation check in sftp server processing read requests may cause a NULL dereference on low-memory conditions. The malicious client can request up to 4GB SFTP reads, causing allocation of up to 4GB buffers, which was not being checked for failure. This will likely crash the authenticated user's sftp server connection (if implemented as forking as recommended). For thread-based servers, this might also cause DoS for legitimate users. Given this code is not in any released versions, no security releases have been issued.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
libssh 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libssh是libssh组织的一个用于访问SSH服务的C语言开发包，它能够执行远程命令、文件传输，同时为远程的程序提供安全的传输通道。 libssh存在安全漏洞，该漏洞源于在处理读取请求的sftp服务器中缺少分配检查，可能会导致在内存不足的情况下出现NULL指针取消引用。
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 |
|---|---|---|---|---|
| - | libssh | - | - | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 | |
| Fedora | Extra Packages for Enterprise Linux 7 | - | - | |
| Fedora | Fedora | - | - |
II. Public POCs for CVE-2023-3603
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · n/a · 2023-07-21 · 10 CVEs total
| CVE-2023-3811 | 6.3 MEDIUM | Hospital Management System patientprofile.php sql injection |
| CVE-2023-3810 | 6.3 MEDIUM | Hospital Management System patientappointment.php sql injection |
| CVE-2023-3809 | 6.3 MEDIUM | Hospital Management System patient.php sql injection |
| CVE-2023-3808 | 6.3 MEDIUM | Hospital Management System patientforgotpassword.php sql injection |
| CVE-2023-38632 | async-sockets-cpp 缓冲区错误漏洞 | |
| CVE-2023-38646 | Metabase 安全漏洞 | |
| CVE-2023-37742 | WebBoss.io 跨站脚本漏洞 | |
| CVE-2023-36339 | WebBoss.io 安全漏洞 | |
| CVE-2021-35391 | Deskpro 代码问题漏洞 |
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V. Comments for CVE-2023-3603
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