GHSA-7M85-FGV2-GV39高危未审查

无摘要

OSV 1.4.0 · unreviewed · 修改于 2026-08-20 02:32

发布时间

2026-08-19 14:31

GitHub 审查时间

—

NVD 发布时间

2026-08-19 14:17

源文件

advisories/unreviewed/2026/08/GHSA-7m85-fgv2-gv39/GHSA-7m85-fgv2-gv39.json

公告说明

Certain system calls, such open(2) with the O_TRUNC flag set, and fspacectl(2), could incorrectly free memory in largepage objects. These operations are not permitted on largepage objects, but the implementation did not verify this.

An unprivileged local user can abuse the bug to access freed kernel memory. This can be exploited to escalate privileges.

受影响的软件包

该公告没有提供结构化的受影响软件包信息。

参考链接

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-49428

标识信息

别名 / CVE

CVE-2026-49428

CWE

CWE-915

软件生态

无

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:N/S:U/C:H/I:H/A:H

原始 OSV JSON

{
  "id": "GHSA-7m85-fgv2-gv39",
  "aliases": [
    "CVE-2026-49428"
  ],
  "details": "Certain system calls, such open(2) with the O_TRUNC flag set, and fspacectl(2), could incorrectly free memory in largepage objects.  These operations are not permitted on largepage objects, but the implementation did not verify this.\n\nAn unprivileged local user can abuse the bug to access freed kernel memory.  This can be exploited to escalate privileges.",
  "affected": [],
  "modified": "2026-08-19T18:32:45Z",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "published": "2026-08-19T06:31:18Z",
  "references": [
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49428",
      "type": "ADVISORY"
    },
    {
      "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:44.posixshm.asc",
      "type": "WEB"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-915"
    ],
    "severity": "HIGH",
    "github_reviewed": false,
    "nvd_published_at": "2026-08-19T06:17:42Z",
    "github_reviewed_at": null
  }
}