cnvd - cnvd-2025-08310

cnvd-2025-08310

Vulnerability from cnvd

Title: GNU GRUB缓冲区溢出漏洞（CNVD-2025-08310）

Description:

GNU GRUB是GNU社区的一款Linux系统引导程序。

GNU GRUB中存在缓冲区溢出漏洞。该漏洞源于romfs模块包含一个处理符号链接时发生整数溢出问题，导致读取数据时发生基于堆的越界写入。目前没有详细的漏洞细节提供。

Severity: 中

Patch Name: GNU GRUB缓冲区溢出漏洞（CNVD-2025-08310）的补丁

Patch Description:

GNU GRUB是GNU社区的一款Linux系统引导程序。

GNU GRUB中存在缓冲区溢出漏洞。该漏洞源于romfs模块包含一个处理符号链接时发生整数溢出问题，导致读取数据时发生基于堆的越界写入。目前没有详细的漏洞细节提供。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已发布升级程序修复该安全问题，详情见厂商官网: https://www.gnu.org/software/grub/grub-download.html

Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-0686

Impacted products

Name
GNU GRUB

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    "cve": {
      "cveNumber": "CVE-2025-0686",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-0686"
    }
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-08310",
  "openTime": "2025-04-21",
  "patchDescription": "GNU GRUB\u662fGNU\u793e\u533a\u7684\u4e00\u6b3eLinux\u7cfb\u7edf\u5f15\u5bfc\u7a0b\u5e8f\u3002\r\n\r\nGNU GRUB\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eromfs\u6a21\u5757\u5305\u542b\u4e00\u4e2a\u5904\u7406\u7b26\u53f7\u94fe\u63a5\u65f6\u53d1\u751f\u6574\u6570\u6ea2\u51fa\u95ee\u9898\uff0c\u5bfc\u81f4\u8bfb\u53d6\u6570\u636e\u65f6\u53d1\u751f\u57fa\u4e8e\u5806\u7684\u8d8a\u754c\u5199\u5165\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "GNU GRUB\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2025-08310\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "GNU GRUB"
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2025-0686",
  "serverity": "\u4e2d",
  "submitTime": "2025-03-27",
  "title": "GNU GRUB\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2025-08310\uff09"
}

CVE-2025-0686 (GCVE-0-2025-0686)

Vulnerability from cvelistv5

Published

2025-03-03 17:14

Modified

2025-07-28 17:35

Severity ?

6.4 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-787 - Out-of-bounds Write

Summary

A flaw was found in grub2. When performing a symlink lookup from a romfs filesystem, grub's romfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_romfs_read_symlink() may cause out-of-bounds writes when the calling grub_disk_read() function. This issue may be leveraged to corrupt grub's internal critical data and can result in arbitrary code execution by-passing secure boot protections.

References

▼	URL	Tags
	https://access.redhat.com/security/cve/CVE-2025-0686	vdb-entry, x_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2346121	issue-tracking, x_refsource_REDHAT

Impacted products

Vendor

Product

Version

▼

Version: 0 ≤ 2.12

Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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