GHSA-6XW4-2G22-26H8低危已审查

Open Babel has an out-of-bounds read in CIF transform3d::DescribeAsString

OSV 1.4.0 · github-reviewed · 修改于 2026-07-01 02:46

发布时间

2026-07-01 02:46

GitHub 审查时间

2026-07-01 02:46

NVD 发布时间

—

源文件

advisories/github-reviewed/2026/06/GHSA-6xw4-2g22-26h8/GHSA-6xw4-2g22-26h8.json

公告说明

Summary

A memory-safety vulnerability in Open Babel's CIF file format parser allowed an out-of-bounds read when reading a crafted input file.

Details

The flaw was in OpenBabel::transform3d::DescribeAsString. A malformed symmetry-operation string caused the parser to read past the end of its internal buffer while formatting the description.

Impact

Open Babel is a C++ library and CLI used to read and write chemistry file formats; it is shipped by Linux distributions and embedded in services that may parse untrusted input. Triggering this vulnerability requires the victim to open a malicious CIF file with the obabel tool, the OBConversion API, or any of the language bindings.

Affected versions

All releases up to and including 3.1.1.

Patched version

3.2.0 (released 2026-05-26).

Patch

Fix commit: https://github.com/openbabel/openbabel/commit/e23a224b Tracked in #2862.

A minimized reproducer for this CVE is checked in at test/files/fuzz_regress/cve-2026-2704.cif and is exercised on every CI build under ASAN+UBSAN by the fuzzregresstest harness.

Credit

Reported by Vedant Madane (@VedantMadane).

受影响的软件包

标识信息

别名 / CVE

CVE-2026-2704

CWE

CWE-119CWE-125

软件生态

PyPI

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V3

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

CVSS_V4

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

原始 OSV JSON

{
  "id": "GHSA-6xw4-2g22-26h8",
  "aliases": [
    "CVE-2026-2704"
  ],
  "details": "> ### Summary\n>\n> A memory-safety vulnerability in Open Babel's CIF file format parser\n> allowed an out-of-bounds read when reading a crafted input file.\n>\n> ### Details\n>\n> The flaw was in `OpenBabel::transform3d::DescribeAsString`. A malformed\n> symmetry-operation string caused the parser to read past the end of its\n> internal buffer while formatting the description.\n>\n> ### Impact\n>\n> Open Babel is a C++ library and CLI used to read and write chemistry\n> file formats; it is shipped by Linux distributions and embedded in\n> services that may parse untrusted input. Triggering this vulnerability\n> requires the victim to open a malicious CIF file with the `obabel`\n> tool, the OBConversion API, or any of the language bindings.\n>\n> ### Affected versions\n>\n> All releases up to and including 3.1.1.\n>\n> ### Patched version\n>\n> 3.2.0 (released 2026-05-26).\n>\n> ### Patch\n>\n> Fix commit: https://github.com/openbabel/openbabel/commit/e23a224b\n> Tracked in #2862.\n>\n> A minimized reproducer for this CVE is checked in at\n> `test/files/fuzz_regress/cve-2026-2704.cif` and is exercised on every\n> CI build under ASAN+UBSAN by the `fuzzregresstest` harness.\n>\n> ### Credit\n>\n> Reported by Vedant Madane (@VedantMadane).",
  "summary": "Open Babel has an out-of-bounds read in CIF transform3d::DescribeAsString",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2.0"
            }
          ]
        }
      ],
      "package": {
        "name": "openbabel",
        "ecosystem": "PyPI"
      }
    }
  ],
  "modified": "2026-06-30T18:46:12Z",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L"
    },
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
    }
  ],
  "published": "2026-06-30T18:46:12Z",
  "references": [
    {
      "url": "https://github.com/openbabel/openbabel/security/advisories/GHSA-6xw4-2g22-26h8",
      "type": "WEB"
    },
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2704",
      "type": "ADVISORY"
    },
    {
      "url": "https://github.com/openbabel/openbabel/issues/2848",
      "type": "WEB"
    },
    {
      "url": "https://github.com/openbabel/openbabel/pull/2862",
      "type": "WEB"
    },
    {
      "url": "https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a",
      "type": "WEB"
    },
    {
      "url": "https://github.com/oneafter/0128/blob/main/ob1/repro.cif",
      "type": "WEB"
    },
    {
      "url": "https://github.com/openbabel/openbabel",
      "type": "PACKAGE"
    },
    {
      "url": "https://github.com/openbabel/openbabel/releases/tag/openbabel-3-2-0",
      "type": "WEB"
    },
    {
      "url": "https://vuldb.com/?ctiid.346650",
      "type": "WEB"
    },
    {
      "url": "https://vuldb.com/?id.346650",
      "type": "WEB"
    },
    {
      "url": "https://vuldb.com/?submit.754378",
      "type": "WEB"
    },
    {
      "url": "https://vuldb.com/submit/754378",
      "type": "WEB"
    },
    {
      "url": "https://vuldb.com/vuln/346650",
      "type": "WEB"
    },
    {
      "url": "https://vuldb.com/vuln/346650/cti",
      "type": "WEB"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-125"
    ],
    "severity": "LOW",
    "github_reviewed": true,
    "nvd_published_at": null,
    "github_reviewed_at": "2026-06-30T18:46:12Z"
  }
}