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CVE-2022-24777— Denial of Service via reachable assertion in grpc-swift

Quick assessment

Affected
grpc grpc-swift
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.

grpc是云原生计算（Cloud Native Computing Foundation）基金会的一个应用于rpc连接的代码库。 grpc-swift 1.7.2 之前版本存在安全漏洞，该漏洞源于处理 GOAWAY 帧时的逻辑不正确。

CVSS 7.5 · High EPSS 1.18% · P65
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I. Basic Information for CVE-2022-24777

Vulnerability Information
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Vulnerability Title
Denial of Service via reachable assertion in grpc-swift
Source: CVE Program / CVE List V5
Vulnerability Description
grpc-swift is the Swift language implementation of gRPC, a remote procedure call (RPC) framework. Prior to version 1.7.2, a grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This is due to incorrect logic when handling GOAWAY frames. The attack is low-effort: it takes very little resources to construct and send the required sequence of frames. The impact on availability is high as the server will crash, dropping all in flight connections and requests. This issue is fixed in version 1.7.2. There are currently no known workarounds.
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
可达断言
Source: CVE Program / CVE List V5
Vulnerability Title
grpc 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
grpc是云原生计算（Cloud Native Computing Foundation）基金会的一个应用于rpc连接的代码库。 grpc-swift 1.7.2 之前版本存在安全漏洞，该漏洞源于处理 GOAWAY 帧时的逻辑不正确。
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
grpc grpc-swift < 1.7.2 -

II. Public POCs for CVE-2022-24777

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III. Intelligence Information for CVE-2022-24777

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Patches & Fixes for CVE-2022-24777 (1)

Vendor Advisories for CVE-2022-24777 (1)

IV. Related Vulnerabilities

Same vendor: grpc
Same weakness: CWE-617

V. Comments for CVE-2022-24777

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