Vulnerability-Lookup

CNVD-2025-19251

Vulnerability from cnvd - Published: 2025-08-22

Title

GNU GRUB空指针解引用漏洞

Description

GNU GRUB是GNU社区的一款Linux系统引导程序。 GNU GRUB存在空指针解引用漏洞，该漏洞源于HFS+grub挂载失败时未正确设置ERRNO，会导致空指针访问。攻击者可利用该漏洞通过绕过安全机制，执行恶意操作。

Severity

中

Formal description

厂商尚未发布漏洞修复程序，请及时关注更新： https://bugzilla.redhat.com/show_bug.cgi?id=2345863

Reference

https://nvd.nist.gov/vuln/detail/CVE-2024-45783

Impacted products

Name
GNU GRUB

Show details on source website

JSON

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      "cveNumber": "CVE-2024-45783",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2024-45783"
    }
  },
  "description": "GNU GRUB\u662fGNU\u793e\u533a\u7684\u4e00\u6b3eLinux\u7cfb\u7edf\u5f15\u5bfc\u7a0b\u5e8f\u3002\n\nGNU GRUB\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eHFS+grub\u6302\u8f7d\u5931\u8d25\u65f6\u672a\u6b63\u786e\u8bbe\u7f6eERRNO\uff0c\u4f1a\u5bfc\u81f4\u7a7a\u6307\u9488\u8bbf\u95ee\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u7ed5\u8fc7\u5b89\u5168\u673a\u5236\uff0c\u6267\u884c\u6076\u610f\u64cd\u4f5c\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-19251",
  "openTime": "2025-08-22",
  "products": {
    "product": "GNU GRUB"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2024-45783",
  "serverity": "\u4e2d",
  "submitTime": "2025-08-20",
  "title": "GNU GRUB\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2024-45783 (GCVE-0-2024-45783)

Vulnerability from cvelistv5 – Published: 2025-02-18 19:26 – Updated: 2026-06-29 22:54

Title

Grub2: fs/hfs+: refcount can be decremented twice

Summary

A flaw was found in grub2. When failing to mount an HFS+ grub, the hfsplus filesystem driver doesn't properly set an ERRNO value. This issue may lead to a NULL pointer access.

Severity

4.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-19 14:42 UTC

CWE

CWE-911 - Improper Update of Reference Count

Assigner

redhat redhat root

References

3 references

URL	Tags
https://access.redhat.com/errata/RHSA-2025:6990	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2024-45783	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2345863	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
		Affected: 0 , ≤ 2.12 (semver)
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 1:2.06-104.el9_6 , < * (rpm) cpe:/o:redhat:enterprise_linux:9::baseos
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 OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2025-02-18 18:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2025-19251

CVE-2024-45783 (GCVE-0-2024-45783)

Tags

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