cnvd - cnvd-2021-16928

cnvd-2021-16928

Vulnerability from cnvd

Title: grub2缓冲区溢出漏洞（CNVD-2021-16928）

Description:

grub2是GNU社区的一款Linux系统引导程序。

grub2 2.06之前版本存在缓冲区溢出漏洞，grub_usb_device_initialize函数，用于处理USB设备初始化。目前没有详细的漏洞细节提供。

Severity: 高

Patch Name: grub2缓冲区溢出漏洞（CNVD-2021-16928）的补丁

Patch Description:

grub2是GNU社区的一款Linux系统引导程序。

grub2 2.06之前版本存在缓冲区溢出漏洞，grub_usb_device_initialize函数，用于处理USB设备初始化。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补丁以修复漏洞，补丁获取链接： https://lists.debian.org/debian-security-announce/2021/msg00048.html

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1886936

Impacted products

Name
GNU GRUB2 <2.06

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-25647",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25647"
    }
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  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://lists.debian.org/debian-security-announce/2021/msg00048.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-16928",
  "openTime": "2021-03-11",
  "patchDescription": "grub2\u662fGNU\u793e\u533a\u7684\u4e00\u6b3eLinux\u7cfb\u7edf\u5f15\u5bfc\u7a0b\u5e8f\u3002\r\n\r\ngrub2 2.06\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0cgrub_usb_device_initialize\u51fd\u6570\uff0c\u7528\u4e8e\u5904\u7406USB\u8bbe\u5907\u521d\u59cb\u5316\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": "grub2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-16928\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "GNU GRUB2 \u003c2.06"
  },
  "referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=1886936",
  "serverity": "\u9ad8",
  "submitTime": "2021-03-10",
  "title": "grub2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-16928\uff09"
}

CVE-2020-25647 (GCVE-0-2020-25647)

Vulnerability from cvelistv5

Published

2021-03-03 16:40

Modified

2024-08-04 15:40

Severity ?

CWE

CWE-787

Summary

A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1886936	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202104-05	vendor-advisory, x_refsource_GENTOO
	https://security.netapp.com/advisory/ntap-20220325-0001/	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	grub2	Version: grub 2.06

Show details on NVD website

JSON

To clipboard

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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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