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CVE-2013-4421

Quick assessment

Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Dropbear SSH Server是Matt Johnston软件开发者所研发的一款开源的小型SSH服务器和客户端，它可运行在基于POSIX（可移植操作系统接口）的各种平台上。 Dropbear SSH Server 2013.59之前的版本中的packet.c文件中的buf_decompress函数中存在安全漏洞。远程攻击者可通过发送特制的数据包利用该漏洞造成拒绝服务（内存耗尽）。

AI Predicted 7.5 Difficulty: Easy EPSS 6.42% · P94

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2013-4421

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The buf_decompress function in packet.c in Dropbear SSH Server before 2013.59 allows remote attackers to cause a denial of service (memory consumption) via a compressed packet that has a large size when it is decompressed.
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
Dropbear SSH ‘buf_decompress()’函数拒绝服务漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dropbear SSH Server是Matt Johnston软件开发者所研发的一款开源的小型SSH服务器和客户端，它可运行在基于POSIX（可移植操作系统接口）的各种平台上。 Dropbear SSH Server 2013.59之前的版本中的packet.c文件中的buf_decompress函数中存在安全漏洞。远程攻击者可通过发送特制的数据包利用该漏洞造成拒绝服务（内存耗尽）。
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-2013-4421

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III. Intelligence Information for CVE-2013-4421

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Vendor Advisories for CVE-2013-4421 (2)

Mailing List Discussions for CVE-2013-4421 (5)

Other References for CVE-2013-4421 (3)

Same Patch Batch · n/a · 2013-10-25 · 19 CVEs total

CVE-2013-6128 WellinTech KingView ActiveX 控件不安全方法漏洞
CVE-2013-5549 Cisco IOS XR Software 拒绝服务漏洞
CVE-2013-5531 Cisco Identity Services Engine 远程身份认证绕过漏洞
CVE-2013-5530 Cisco ISE Web框架操作系统命令注入漏洞
CVE-2013-5522 Cisco Catalyst 3750-X Switches Service Module 权限许可和访问控制漏洞
CVE-2013-5521 Cisco ISE 权限许可和访问控制漏洞
CVE-2013-3280 EMC RSA Authentication Agent 权限许可和访问控制漏洞
CVE-2013-6281 WordPress Spreadsheet插件‘page’参数跨站脚本漏洞
CVE-2013-6280 WordPress Social Sharing Toolkit插件跨站脚本漏洞
CVE-2013-1067 Apport 安全漏洞
CVE-2013-6127 WellinTech KingView ActiveX 多个任意文件覆盖漏洞
CVE-2013-5424 IBM Flex System Manager 密码安全绕过漏洞
CVE-2013-3989 IBM Security AppScan Enterprise 安全漏洞
CVE-2013-6283 VideoLAN VLC Media Player 拒绝服务漏洞
CVE-2013-4965 Puppet Enterprise 安全漏洞
CVE-2013-4957 Puppet Enterprise Dashboard Report YAML Handling 任意代码执行漏洞
CVE-2013-4465 SMF 任意文件上传漏洞
CVE-2013-4434 Dropbear SSH Server ‘svr-auth.c’ 用户枚举漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2013-4421

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