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CVE-2023-6337— Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests

Quick assessment

Affected
HashiCorp Vault
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.

HashiCorp Vault是美国HashiCorp公司的一款私钥访问管理工具。 HashiCorp Vault、Vault Enterprise 1.12.0 及之前、1.15.4之前、1.14.8之前、1.13.12之前版本存在安全漏洞，该漏洞源于在处理来自客户端的大量未经身份验证和经过身份验证的 HTTP 请求时，Vault会将请求映射到内存，从而导致内存耗尽，导致崩溃。

CVSS 7.5 · High EPSS 0.80% · P55
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I. Basic Information for CVE-2023-6337

Vulnerability Information
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Vulnerability Title
Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests
Source: CVE Program / CVE List V5
Vulnerability Description
HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash. Fixed in Vault 1.15.4, 1.14.8, 1.13.12.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
HashiCorp Vault 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HashiCorp Vault是美国HashiCorp公司的一款私钥访问管理工具。 HashiCorp Vault、Vault Enterprise 1.12.0 及之前、1.15.4之前、1.14.8之前、1.13.12之前版本存在安全漏洞，该漏洞源于在处理来自客户端的大量未经身份验证和经过身份验证的 HTTP 请求时，Vault会将请求映射到内存，从而导致内存耗尽，导致崩溃。
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
HashiCorp Vault 1.12.0 ~ 1.15.4 -
HashiCorp Vault Enterprise 1.12.0 ~ 1.15.4 -

II. Public POCs for CVE-2023-6337

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III. Intelligence Information for CVE-2023-6337

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Vendor Advisories for CVE-2023-6337 (1)

Other References for CVE-2023-6337 (1)

IV. Related Vulnerabilities

Same product: Vault
Same vendor: HashiCorp
Same weakness: CWE-770

V. Comments for CVE-2023-6337

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