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CVE-2019-11873

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.

wolfSSL（前称CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL 4.0.0版本中的tls13.c文件的‘DoPreSharedKeys’函数存在缓冲区溢出漏洞。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 9.8 Difficulty: Easy EPSS 8.78% · P95

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2019-11873

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
wolfSSL 4.0.0 has a Buffer Overflow in DoPreSharedKeys in tls13.c when a current identity size is greater than a client identity size. An attacker sends a crafted hello client packet over the network to a TLSv1.3 wolfSSL server. The length fields of the packet: record length, client hello length, total extensions length, PSK extension length, total identity length, and identity length contain their maximum value which is 2^16. The identity data field of the PSK extension of the packet contains the attack data, to be stored in the undefined memory (RAM) of the server. The size of the data is about 65 kB. Possibly the attacker can perform a remote code execution attack.
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
wolfSSL 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wolfSSL（前称CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL 4.0.0版本中的tls13.c文件的‘DoPreSharedKeys’函数存在缓冲区溢出漏洞。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
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II. Public POCs for CVE-2019-11873

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III. Intelligence Information for CVE-2019-11873

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Vendor Advisories for CVE-2019-11873 (1)

Other References for CVE-2019-11873 (1)

Other References for CVE-2019-11873 (1)

Same Patch Batch · n/a · 2019-05-23 · 48 CVEs total

CVE-2017-17061 Open-Xchange OX App Suite 跨站脚本漏洞
CVE-2017-5212 Open-Xchange OX App Suite 访问控制错误漏洞
CVE-2019-12300 Buildbot 授权问题漏洞
CVE-2019-12042 多款Panda Security产品权限许可和访问控制问题漏洞
CVE-2019-9949 多款Western Digital产品后置链接漏洞
CVE-2019-12297 Motorola CX2和Motorola M2 格式化字符串错误漏洞
CVE-2019-12295 Wireshark 代码注入漏洞
CVE-2019-12293 Poppler 缓冲区错误漏洞
CVE-2019-12298 Leanify 缓冲区错误漏洞
CVE-2017-5210 Open-Xchange OX App Suite 信息泄露漏洞
CVE-2017-5211 Open-Xchange OX App Suite 输入验证错误漏洞
CVE-2017-17060 Open-Xchange OX App Suite 授权问题漏洞
CVE-2017-15652 Artifex Software Ghostscript 信息泄露漏洞
CVE-2017-15030 Open-Xchange OX App Suite 跨站脚本漏洞
CVE-2017-15029 Open-Xchange OX App Suite 代码问题漏洞
CVE-2019-12301 Percona Server 授权问题漏洞
CVE-2017-13668 Open-Xchange OX App Suite 跨站脚本漏洞
CVE-2017-11740 ZOHO ManageEngine Application Manager 输入验证错误漏洞
CVE-2017-11739 ZOHO ManageEngine Application Manager 跨站脚本漏洞
CVE-2017-11738 ZOHO ManageEngine Application Manager SQL注入漏洞

Showing top 20 of 48 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2019-11873

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