GHSA-xc79-566c-j4qx

Source

https://github.com/advisories/GHSA-xc79-566c-j4qx

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-xc79-566c-j4qx/GHSA-xc79-566c-j4qx.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-xc79-566c-j4qx

Aliases

GO-2025-4019

Published

2025-10-10T23:45:20Z

Modified

2025-10-23T20:34:55Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

Parallax is vulnerable to DoS via malicious p2p message

Details

Impact

A vulnerable node can be made to consume very large amounts of memory when handling specially crafted p2p messages sent from an attacker node.

In order to carry out the attack, the attacker establishes a peer connections to the victim, and sends a malicious GetBlockHeadersRequest message with a count of 0, using the Parallax protocol.

In descendants := chain.GetHeadersFrom(num+count-1, count-1), the value of count-1 is passed to the function GetHeadersFrom(number, count uint64) as parameter count. Due to integer overflow, UINT64_MAX value is then passed as the count argument to function GetHeadersFrom(number, count uint64). This allows an attacker to bypass maxHeadersServe and request all headers from the latest block back to the genesis block.

Patches

The fix has been included in the Parallax client version 0.1.4 and onwards.

The vulnerability was patched in: https://github.com/microstack-tech/parallax/commit/f759e9090aaf00a43c616d7cbd133c44bb1ed01e

Workarounds

No workarounds have been made public.

Credit

This issue was disclosed responsibly by DongHan Kim via the Ethereum bug bounty program, the cooperation is appreciated.

Database specific

{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-400"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-10T23:45:20Z"
}

References

Affected packages

Go / github.com/microstack-tech/parallax

Package

Name: github.com/microstack-tech/parallax; View open source insights on deps.dev
Purl: pkg:golang/github.com/microstack-tech/parallax

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.1.4

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-xc79-566c-j4qx/GHSA-xc79-566c-j4qx.json"