cnvd - cnvd-2025-12276

cnvd-2025-12276

Vulnerability from cnvd

Title: GNU GRUB2缓冲区溢出漏洞

Description:

GNU GRUB2是一个开源的引导加载程序，用于在计算机启动时加载操作系统内核。

GNU GRUB2存在缓冲区溢出漏洞，该漏洞源于从squash4文件系统读取数据时，存在整数溢出。攻击者可利用该漏洞破坏GRUB2的内部关键数据，执行任意代码。

Severity: 中

Patch Name: GNU GRUB2缓冲区溢出漏洞的补丁

Patch Description:

GNU GRUB2是一个开源的引导加载程序，用于在计算机启动时加载操作系统内核。

GNU GRUB2存在缓冲区溢出漏洞，该漏洞源于从squash4文件系统读取数据时，存在整数溢出。攻击者可利用该漏洞破坏GRUB2的内部关键数据，执行任意代码。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://access.redhat.com/security/cve/CVE-2025-0678 https://bugzilla.redhat.com/show_bug.cgi?id=2346118

Impacted products

Name
GNU GRUB2 <=2.12

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-0678",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-0678"
    }
  },
  "description": "GNU GRUB2\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5f15\u5bfc\u52a0\u8f7d\u7a0b\u5e8f\uff0c\u7528\u4e8e\u5728\u8ba1\u7b97\u673a\u542f\u52a8\u65f6\u52a0\u8f7d\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u3002\n\nGNU GRUB2\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ecesquash4\u6587\u4ef6\u7cfb\u7edf\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7834\u574fGRUB2\u7684\u5185\u90e8\u5173\u952e\u6570\u636e\uff0c\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u89c1\u5382\u5546\u5b98\u7f51\uff1a\r\nhttps://www.gnu.org/software/grub/grub-download.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-12276",
  "openTime": "2025-06-12",
  "patchDescription": "GNU GRUB2\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5f15\u5bfc\u52a0\u8f7d\u7a0b\u5e8f\uff0c\u7528\u4e8e\u5728\u8ba1\u7b97\u673a\u542f\u52a8\u65f6\u52a0\u8f7d\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u3002\r\n\r\nGNU GRUB2\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ecesquash4\u6587\u4ef6\u7cfb\u7edf\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7834\u574fGRUB2\u7684\u5185\u90e8\u5173\u952e\u6570\u636e\uff0c\u6267\u884c\u4efb\u610f\u4ee3\u7801\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 GRUB2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "GNU GRUB2 \u003c=2.12"
  },
  "referenceLink": "https://access.redhat.com/security/cve/CVE-2025-0678\r\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2346118",
  "serverity": "\u4e2d",
  "submitTime": "2025-03-07",
  "title": "GNU GRUB2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2025-0678 (GCVE-0-2025-0678)

Vulnerability from cvelistv5

Published

2025-03-03 17:05

Modified

2025-08-30 21:10

Severity ?

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

CWE

CWE-190 - Integer Overflow or Wraparound

Summary

A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs 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 direct_read() will perform a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution, by-passing secure boot protections.

References

▼	URL	Tags
	https://access.redhat.com/security/cve/CVE-2025-0678	vdb-entry, x_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2346118	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

Show details on NVD website

JSON

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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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