CVE-2022-26495
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
nbd是一个 Linux 内核网络块设备的工具。用于通过 TCP/IP 网络使用远程块设备。 nbd 3.24之前版本的nbd-server 存在安全漏洞，该漏洞源于nbd-server出现整数溢出，导致基于堆的缓冲区溢出。名称长度字段中的值0xffffffff将导致为名称分配一个零大小的缓冲区，从而导致对悬空指针的写操作。存在“NBD OPT INFO”、“NBD OPT GO”和“NBD OPT EXPORT NAME”消息。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-26495
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
nbd 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
nbd是一个 Linux 内核网络块设备的工具。用于通过 TCP/IP 网络使用远程块设备。 nbd 3.24之前版本的nbd-server 存在安全漏洞，该漏洞源于nbd-server出现整数溢出，导致基于堆的缓冲区溢出。名称长度字段中的值0xffffffff将导致为名称分配一个零大小的缓冲区，从而导致对悬空指针的写操作。存在“NBD OPT INFO”、“NBD OPT GO”和“NBD OPT EXPORT NAME”消息。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2022-26495
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2022-26495 (2)
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https://security.gentoo.org/glsa/202402-10 vendor-advisory
Mailing List Discussions for CVE-2022-26495 (5)
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https://lists.debian.org/nbd/2022/01/msg00037.html x_refsource_MISC
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G2UPX62BIWOOHSACGUDB7E3O4URNN37F/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZHR73XMAJTCFGKUZRXVTZKCK2X3IFNA/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5/ vendor-advisory x_refsource_FEDORA
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Other References for CVE-2022-26495 (1)
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https://sourceforge.net/projects/nbd/files/nbd/ x_refsource_MISC
Same Patch Batch · n/a · 2022-03-06 · 7 CVEs total
| CVE-2022-26496 | nbd 缓冲区错误漏洞 | |
| CVE-2022-26505 | ReadyMedia 安全漏洞 | |
| CVE-2022-26490 | Linux kernel 安全漏洞 | |
| CVE-2021-46703 | Antaris RazorEngine 安全漏洞 | |
| CVE-2021-46704 | GenieACS 操作系统命令注入漏洞 | |
| CVE-2021-44421 | Occlum 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2022-26495
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