gix-transport indirect code execution via malicious username

{
  "id": "0c546d2e0ee43f3f943cbffbc286d234c2a9b711a4af328219fac09af01d448b",
  "url": "https://osv.dev/vulnerability/RUSTSEC-2024-0335",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "gix-transport indirect code execution via malicious username",
    "summary": "### Summary `gix-transport` does not check the username part of a URL for text that the external `ssh` program would interpret as an option. A specially crafted clone URL can smuggle options to SSH. The possibilities are syntactically limited, but if a malicious clone URL is used by an application whose current working directory contains a malicious file, arbitrary code execution occurs. The first `gix` crate with the fix [is version 0.62.0](https://crates.io/crates/gix/0.62.0), and the first fixed `gix` CLI is [version 0.35](https://github.com/Byron/gitoxide/releases/tag/v0.35.0). `gix-transport` [at version v0.42](https://crates.io/crates/gix-transport/0.42.0) is the lowest-level plumbing crate with the fix. ### Details This is related to the patched vulnerability [RUSTSEC-2023-0064](https://rustsec.org/advisories/RUSTSEC-2023-0064.html), but appears less severe due to a greater attack complexity. Since , `gix-transport` checks the host and path portions of a URL for text that has a `-` in a position that will cause `ssh` to interpret part of all of the URL as an option argument. But it does not check the non-mandatory username portion of the URL. As in Git, when an address is a URL of the form `ssh://username@hostname/path`, or when it takes the special form `username@hostname:dirs/repo`, this is treated as an SSH URL. `gix-transport` will replace some characters in `username` with their `%`-based URL encodings, but otherwise passes `username@hostname` as an argument to th",
    "evidence": "osv:RUSTSEC-2024-0335",
    "products": [
      {
        "name": {
          "value": "gix-transport",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.42.0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "RUSTSEC-2024-0335",
      "aliases": [
        "CVE-2024-32884",
        "GHSA-98p4-xjmm-8mfh",
        "RUSTSEC-2024-0335"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0.0.0-0"
                },
                {
                  "fixed": "0.42.0"
                }
              ]
            }
          ],
          "package": {
            "name": "gix-transport",
            "purl": "pkg:cargo/gix-transport",
            "ecosystem": "crates.io"
          },
          "database_specific": {
            "cvss": null,
            "source": "https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2024-0335.json",
            "categories": [
              "code-execution"
            ],
            "informational": null
          },
          "ecosystem_specific": {
            "affects": {
              "os": [],
              "arch": [],
              "functions": []
            },
            "affected_functions": null
          }
        }
      ],
      "modified": "2026-10-12T18:00:02.670514218Z",
      "provider": "osv",
      "references": [
        "https://crates.io/crates/gix-transport",
        "https://rustsec.org/advisories/RUSTSEC-2024-0335.html",
        "https://github.com/Byron/gitoxide/pull/1032"
      ],
      "provider_metadata": {
        "license": "CC0-1.0"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-32884",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 306324,
  "published_at": "2024-04-13T12:00:00+00:00"
}