CVE-2023-25136
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I. Basic Information for CVE-2023-25136
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenSSH 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenSSH（OpenBSD Secure Shell）是加拿大OpenBSD计划组的一套用于安全访问远程计算机的连接工具。该工具是SSH协议的开源实现，支持对所有的传输进行加密，可有效阻止窃听、连接劫持以及其他网络级的攻击。 OpenSSH 存在资源管理错误漏洞，该漏洞源于options.kex_algorithms 处理期间引入了双重释放漏洞。
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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2023-25136
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/jfrog/jfrog-CVE-2023-25136-OpenSSH_Double-Free | POC Details |
| 2 | None | https://github.com/ticofookfook/CVE-2023-25136 | POC Details |
| 3 | OpenSSH 9.1 vulnerability mass scan and exploit | https://github.com/Christbowel/CVE-2023-25136 | POC Details |
| 4 | OpenSSH Pre-Auth Double Free CVE-2023-25136 POC | https://github.com/adhikara13/CVE-2023-25136 | POC Details |
| 5 | OpenSSH 9.1 vulnerability mass scan and exploit | https://github.com/nhakobyan685/CVE-2023-25136 | POC Details |
| 6 | CVE-2023-25136 POC written by axylisdead | https://github.com/axylisdead/CVE-2023-25136_POC | POC Details |
| 7 | OpenSSH 9.1漏洞大规模扫描和利用 | https://github.com/H4K6/CVE-2023-25136 | POC Details |
| 8 | Looking into the memory when sshd 9.1p1 aborts due to a double free bug. | https://github.com/Business1sg00d/CVE-2023-25136 | POC Details |
| 9 | OpenSSH Pre-Auth Double Free CVE-2023-25136 – Writeup and Proof-of-Concept | https://github.com/malvika-thakur/CVE-2023-25136 | POC Details |
| 10 | This vulnerability is of the "double-free" type, which occurs during the processing of key exchange (KEX) algorithms in OpenSSH. A "double-free" vulnerability happens when memory that has already been freed is freed again. This issue can indirectly lead to remote code execution (RCE) by an attacker. | https://github.com/mrmtwoj/CVE-2023-25136 | POC Details |
| 11 | None | https://github.com/Lane0218/CVE-2023-25136-PoC | POC Details |
AI-Generated POCPremium
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- https://security.gentoo.org/glsa/202307-01vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2023-25136
Same Patch Batch · n/a · 2023-02-03 · 93 CVEs total
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| CVE-2023-23635 | Jellyfin 跨站脚本漏洞 | |
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| CVE-2023-24138 | TOTOLINK CA300-PoE 命令注入漏洞 |
Showing top 20 of 93 CVEs. View all on vendor page → →
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V. Comments for CVE-2023-25136
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