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CVE-2019-11923

Quick assessment

Affected
Facebook Mcrouter
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.

Mcrouter是一款memcached协议路由器。 Mcrouter v0.41.0之前版本中存在安全漏洞，该漏洞源于不建议使用的ASCII解析器在根据用户指定的长度分配缓冲区时，没有限定最大长度。攻击者可利用该漏洞耗尽资源或造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 1.45% · P73

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2019-11923

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Mcrouter prior to v0.41.0, the deprecated ASCII parser would allocate a buffer to a user-specified length with no maximum length enforced, allowing for resource exhaustion or denial of service.
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
Mcrouter 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mcrouter是一款memcached协议路由器。 Mcrouter v0.41.0之前版本中存在安全漏洞，该漏洞源于不建议使用的ASCII解析器在根据用户指定的长度分配缓冲区时，没有限定最大长度。攻击者可利用该漏洞耗尽资源或造成拒绝服务。
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
Facebook Mcrouter 0.41.0 -

II. Public POCs for CVE-2019-11923

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III. Intelligence Information for CVE-2019-11923

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Patches & Fixes for CVE-2019-11923 (1)

Other References for CVE-2019-11923 (2)

Same Patch Batch · Facebook · 2019-12-04 · 7 CVEs total

CVE-2019-11940 Facebook Proxygen 资源管理错误漏洞
CVE-2019-11934 folly AsyncSSLSocket 缓冲区错误漏洞
CVE-2019-11935 Facebook HHVM 缓冲区错误漏洞
CVE-2019-11936 Facebook HHVM 缓冲区错误漏洞
CVE-2019-11930 Facebook HHVM 输入验证错误漏洞
CVE-2019-11937 Mcrouter 资源管理错误漏洞

IV. Related Vulnerabilities

Same product: Mcrouter
Same vendor: Facebook

V. Comments for CVE-2019-11923

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