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CVE-2019-13115

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libssh2是一款实现SSH2协议的客户端C库，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。 libssh2 1.9.0之前版本中的kex.c文件的ex_method_diffie_hellman_group_exchange_sha256_key_exchange存在输入验证错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

AI Predicted 7.5 Difficulty: Easy EPSS 11.66% · P96

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2019-13115

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
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
libssh2 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libssh2是一款实现SSH2协议的客户端C库，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。 libssh2 1.9.0之前版本中的kex.c文件的ex_method_diffie_hellman_group_exchange_sha256_key_exchange存在输入验证错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
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-2019-13115

# POC Description Source Link Shenlong Link
1 Create an exploit to libssh2 vulnerabulity described in CVE-2019-13115 https://github.com/viz27/Libssh2-Exploit POC Details
2 Create an exploit to libssh2 vulnerabulity described in CVE-2019-13115 https://github.com/CSSProject/libssh2-Exploit POC Details
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III. Intelligence Information for CVE-2019-13115

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Patches & Fixes for CVE-2019-13115 (1)

Vendor Advisories for CVE-2019-13115 (3)

Exploits & Public PoCs for CVE-2019-13115 (1)

Mailing List Discussions for CVE-2019-13115 (7)

Security Blog Posts for CVE-2019-13115 (1)

Other References for CVE-2019-13115 (2)

Same Patch Batch · n/a · 2019-07-16 · 22 CVEs total

CVE-2019-13359 CentOS Web Panel 代码问题漏洞
CVE-2018-13442 SolarWinds Network Performance Monitor SQL注入漏洞
CVE-2019-12834 HT2 Labs Learning Locker 跨站脚本漏洞
CVE-2019-12985 Citrix Systems SD-WAN Center和NetScaler SD-WAN Center 命令操作系统命令注入漏洞
CVE-2019-12986 Citrix Systems SD-WAN Center和NetScaler SD-WAN Center 命令操作系统命令注入漏洞
CVE-2019-12987 Citrix Systems SD-WAN和NetScaler SD-WAN 命令操作系统命令注入漏洞
CVE-2019-12988 Citrix Systems SD-WAN Center和NetScaler SD-WAN Center 命令操作系统命令注入漏洞
CVE-2019-12989 Citrix Systems SD-WAN Appliance和NetScaler SD-WAN Appliance SQL注入漏洞
CVE-2019-12990 Citrix Systems SD-WAN Center和NetScaler SD-WAN Center 路径遍历漏洞
CVE-2019-12991 Citrix Systems SD-WAN Appliance和NetScaler SD-WAN Appliance 命令操作系统命令注入漏洞
CVE-2019-12992 Citrix Systems SD-WAN Center和NetScaler SD-WAN Center 命令操作系统命令注入漏洞
CVE-2019-13616 Simple DirectMedia Layer 缓冲区错误漏洞
CVE-2019-13360 CentOS Web Panel 授权问题漏洞
CVE-2019-13383 CentOS Web Panel 信息泄露漏洞
CVE-2019-13603 HID Global DigitalPersona U.are.U 4500 Fingerprint Reader Windows Biometric Framework driv
CVE-2019-13605 CentOS Web Panel 授权问题漏洞
CVE-2019-13618 GPAC 缓冲区错误漏洞
CVE-2019-13617 NGINX njs 缓冲区错误漏洞
CVE-2019-13615 VideoLAN VLC media player MKV模块libebml 缓冲区错误漏洞
CVE-2018-19629 Hyland Software Perceptive Content Server 输入验证错误漏洞

Showing top 20 of 22 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2019-13115

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