rustsec-2023-0044
Vulnerability from osv_rustsec
Published
2023-06-20 12:00
Modified
2025-10-28 06:02
Summary
`openssl` `X509VerifyParamRef::set_host` buffer over-read
Details

When this function was passed an empty string, openssl would attempt to call strlen on it, reading arbitrary memory until it reached a NUL byte.

To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-exposure"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "openssl::x509::verify::X509VerifyParamRef::set_host"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "openssl",
        "purl": "pkg:cargo/openssl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.10.55"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2023-53159",
    "GHSA-xcf7-rvmh-g6q4"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "When this function was passed an empty string, `openssl` would attempt to call `strlen` on it, reading arbitrary memory until it reached a NUL byte.",
  "id": "RUSTSEC-2023-0044",
  "modified": "2025-10-28T06:02:18Z",
  "published": "2023-06-20T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/openssl"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0044.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sfackler/rust-openssl/issues/1965"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "`openssl` `X509VerifyParamRef::set_host` buffer over-read"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.