github - ghsa-7w9h-j8xp-j97v

ghsa-7w9h-j8xp-j97v

Vulnerability from github

Published

2025-11-18 21:32

Modified

2025-11-18 21:32

Severity ?

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

Details

A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-61664"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-825"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-18T19:15:50Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.",
  "id": "GHSA-7w9h-j8xp-j97v",
  "modified": "2025-11-18T21:32:31Z",
  "published": "2025-11-18T21:32:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61664"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-61664"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2414685"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-61664 (GCVE-0-2025-61664)

Vulnerability from cvelistv5

Published

2025-11-18 18:20

Modified

2025-11-19 14:28

Severity ?

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

CWE

CWE-825 - Expired Pointer Dereference

Summary

A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.

References

URL

Tags

	https://access.redhat.com/security/cve/CVE-2025-61664	vdb-entry, x_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2414685	issue-tracking, x_refsource_REDHAT

Impacted products

Vendor

Product

Version

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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                "timestamp": "2025-11-19T14:28:39.205630Z",
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