cnvd - cnvd-2022-42745

CNVD-2022-42745

Vulnerability from cnvd - Published: 2022-06-02

Title

Dell PowerEdge缓冲区溢出漏洞

Description

Dell PowerEdge Server BIOS是戴尔（Dell）的一款系统更新驱动程序。 Dell PowerEdge存在安全漏洞，攻击者可利用该漏洞导致拒绝服务、任意代码执行或在UEFI或BIOS预引导环境中泄露信息。

Severity

高

Patch Name

Dell PowerEdge缓冲区溢出漏洞的补丁

Patch Description

Dell PowerEdge Server BIOS是戴尔（Dell）的一款系统更新驱动程序。 Dell PowerEdge存在安全漏洞，攻击者可利用该漏洞导致拒绝服务、任意代码执行或在UEFI或BIOS预引导环境中泄露信息。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

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://www.dell.com/support/kbdoc/zh-cn/000187958/dsa-2021-103-dell-emc-poweredge-server-security-update-for-bios-vulnerabilities

Reference

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21556

Impacted products

Name
['DELL PowerEdge R640 <2.11.2', 'DELL PowerEdge R740 <2.11.2', 'DELL PowerEdge R740XD <2.11.2', 'DELL PowerEdge R840 <2.11.2', 'DELL PowerEdge R940 <2.11.2', 'DELL PowerEdge R940xa <2.11.2', 'DELL PowerEdge MX740c <2.11.2', 'DELL PowerEdge MX840c <2.11.2']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21556",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-21556"
    }
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-42745",
  "openTime": "2022-06-02",
  "patchDescription": "Dell PowerEdge Server BIOS\u662f\u6234\u5c14\uff08Dell\uff09\u7684\u4e00\u6b3e\u7cfb\u7edf\u66f4\u65b0\u9a71\u52a8\u7a0b\u5e8f\u3002\r\n\r\nDell PowerEdge\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3001\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6216\u5728UEFI\u6216BIOS\u9884\u5f15\u5bfc\u73af\u5883\u4e2d\u6cc4\u9732\u4fe1\u606f\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": "Dell PowerEdge\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "DELL PowerEdge R640 \u003c2.11.2",
      "DELL PowerEdge R740 \u003c2.11.2",
      "DELL PowerEdge R740XD \u003c2.11.2",
      "DELL PowerEdge R840 \u003c2.11.2",
      "DELL PowerEdge R940 \u003c2.11.2",
      "DELL PowerEdge R940xa \u003c2.11.2",
      "DELL PowerEdge MX740c \u003c2.11.2",
      "DELL PowerEdge MX840c \u003c2.11.2"
    ]
  },
  "referenceLink": "http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21556",
  "serverity": "\u9ad8",
  "submitTime": "2021-06-16",
  "title": "Dell PowerEdge\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-21556 (GCVE-0-2021-21556)

Vulnerability from cvelistv5 – Published: 2021-06-14 19:10 – Updated: 2024-09-17 01:40

Summary

Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a stack-based buffer overflow vulnerability in systems with NVDIMM-N installed. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of Service, arbitrary code execution, or information disclosure in UEFI or BIOS Preboot Environment.

Severity ?

6.1 (Medium)


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

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

dell

References

URL

Tags

https://www.dell.com/support/kbdoc/000187958

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Dell	PowerEdge BIOS Intel 15G	Affected: unspecified , < 2.11.2 (custom)

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JSON

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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2022-42745

CVE-2021-21556 (GCVE-0-2021-21556)

Tags

Sightings

Nomenclature