CVE-2022-2526
Quick assessment
Affected
n/a systemd-resolved
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.
Red Hat Enterprise Linux是美国红帽（Red Hat）公司的面向企业用户的Linux操作系统 Red Hat Enterprise Linux 存在安全漏洞，该漏洞源于resolved-dns-stream.c 中的 on_stream_io() 函数和 dns_stream_complete() 函数未增加 DnsStream 对象的引用计数，调用的其他函数和回调可以取消对DNSStream对象的引用，从而导致在以后仍然使用引用时会出现释放后重用问题，以下产品和版本受到影响：Red
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-2526
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Enterprise Linux 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Enterprise Linux是美国红帽（Red Hat）公司的面向企业用户的Linux操作系统 Red Hat Enterprise Linux 存在安全漏洞，该漏洞源于resolved-dns-stream.c 中的 on_stream_io() 函数和 dns_stream_complete() 函数未增加 DnsStream 对象的引用计数，调用的其他函数和回调可以取消对DNSStream对象的引用，从而导致在以后仍然使用引用时会出现释放后重用问题，以下产品和版本受到影响：Red
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 |
|---|---|---|---|---|
| - | systemd-resolved | systemd 240 | - |
|
II. Public POCs for CVE-2022-2526
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2022-2526 (1)
Vendor Advisories for CVE-2022-2526 (1)
Same Patch Batch · n/a · 2022-09-09 · 44 CVEs total
| CVE-2022-25765 | 7.3 HIGH | Command Injection |
| CVE-2022-38283 | JFinal SQL注入漏洞 | |
| CVE-2022-40305 | Canto Cumulus 代码问题漏洞 | |
| CVE-2022-38286 | JFinal SQL注入漏洞 | |
| CVE-2022-40299 | Singular 安全特征问题漏洞 | |
| CVE-2022-2964 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2022-3169 | RISC-V 输入验证错误漏洞 | |
| CVE-2022-38266 | tesseract 数字错误漏洞 | |
| CVE-2022-40307 | Linux kernel 竞争条件问题漏洞 | |
| CVE-2022-2905 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2022-38284 | JFinal SQL注入漏洞 | |
| CVE-2022-38285 | JFinal SQL注入漏洞 | |
| CVE-2022-38282 | JFinal SQL注入漏洞 | |
| CVE-2022-38281 | JFinal SQL注入漏洞 | |
| CVE-2022-38280 | JFinal SQL注入漏洞 | |
| CVE-2022-38279 | JFinal SQL注入漏洞 | |
| CVE-2022-38278 | JFinal SQL注入漏洞 | |
| CVE-2022-38277 | JFinal SQL注入漏洞 | |
| CVE-2022-38276 | JFinal SQL注入漏洞 | |
| CVE-2022-38275 | JFinal SQL注入漏洞 |
Showing top 20 of 44 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same weakness: CWE-416
V. Comments for CVE-2022-2526
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