CVE-2022-24777: Github.com/grpc/grpc swift Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-r6ww-5963-7r95
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CVSS 7.5
CWE-617
Published
Advisory Summary

CVE-2022-24777 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-617: Reachable Assertion) affecting Github.com/grpc/grpc swift libraries in the SwiftURL ecosystem. The issue involves denial of service via reachable assertion. Remediation is available by upgrading affected packages to version 1.7.2.

CVE-2022-24777 at a Glance

CVE Identifier CVE-2022-24777
GHSA Identifier GHSA-r6ww-5963-7r95
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-617: Reachable Assertion
Affected Product Github.com/grpc/grpc swift
Package Ecosystem SwiftURL
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2022-24777

To remediate this vulnerability, upgrade all affected Github.com/grpc/grpc swift dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/grpc/grpc-swift fixed: 1.7.2 
Upgrade github.com/grpc/grpc-swift to 1.7.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/grpc/grpc-swift

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-24777, inspect your project dependencies for Github.com/grpc/grpc swift:

inspect dependencies for github.com/grpc/grpc-swift

Analyze the terminal output to locate any version of Github.com/grpc/grpc swift in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.7.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-617: Reachable Assertion, where the product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. In Github.com/grpc/grpc swift, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This was 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. The issue was discovered by automated fuzz testing and is resolved by fixing the relevant state handling code.

CVE-2022-24777 Affected Github.com/grpc/grpc swift Versions

1 component(s)
Fixed Versions:
1.7.2
Product / Package Ecosystem Affected Versions Fixed Version
github.com/grpc/grpc-swift
 SwiftURL
< 1.7.2
1.7.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/grpc/grpc-swift/security/advisories/GHSA-r6ww-5963-7r95
NVD — CVE-2022-24777 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-24777
Security Fix Commit FIX COMMIT
https://github.com/grpc/grpc-swift/commit/858f977f2a51fca2292f384cf7a108dc2e73a3bd
Github.com/grpc/grpc swift Source Repository REPOSITORY
https://github.com/grpc/grpc-swift

Frequently Asked Questions

What is CVE-2022-24777?
CVE-2022-24777 is a security vulnerability in Github.com/grpc/grpc swift involving Denial of Service via reachable assertion under CWE-617: Reachable Assertion.
Which Github.com/grpc/grpc swift versions are affected?
Affected versions include releases prior to 1.7.2 across affected packages: github.com/grpc/grpc-swift.
What version fixes CVE-2022-24777?
Upgrading to 1.7.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/grpc/grpc-swift affected?
Yes, github.com/grpc/grpc-swift is affected in releases prior to 1.7.2. Upgrade your dependency to 1.7.2 or later.
What is the CVSS score of CVE-2022-24777?
CVE-2022-24777 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2022-24777?
CVE-2022-24777 is classified under CWE-617: Reachable Assertion (The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.).
How can I check SwiftURL dependencies for CVE-2022-24777?
Run the dependency tree command: 'inspect dependencies for github.com/grpc/grpc-swift'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-r6ww-5963-7r95",
  "modified" : "2024-02-09T00:34:17Z",
  "published" : "2023-06-09T19:33:16Z",
  "aliases" : [ "CVE-2022-24777" ],
  "summary" : "Denial of Service via reachable assertion",
  "details" : "A grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This was due to incorrect logic when handling `GOAWAY` frames.\n\nThe 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.\n\nThe issue was discovered by automated fuzz testing and is resolved by fixing the relevant state handling code.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "SwiftURL",
      "name" : "github.com/grpc/grpc-swift"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/grpc/grpc-swift/security/advisories/GHSA-r6ww-5963-7r95"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-24777"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grpc/grpc-swift/commit/858f977f2a51fca2292f384cf7a108dc2e73a3bd"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/grpc/grpc-swift"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-617" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-09T19:33:16Z",
    "nvd_published_at" : "2022-03-25T17:15:00Z"
  }
}