Vulnerability-Lookup

CNVD-2019-46264

Vulnerability from cnvd - Published: 2019-12-20

Title

grub2 grub2-set-bootflag实用程序存在未明漏洞

Description

runc是一款用于根据OCI规范生成和运行容器的CLI（命令行界面）工具。 grub2中的grub2-set-bootflag实用程序存在安全漏洞，本地攻击者可利用该漏洞截断grub2配置文件，使设备无法在重启阶段启动系统。

Severity

中

Patch Name

grub2 grub2-set-bootflag实用程序存在未明漏洞的补丁

Patch Description

runc是一款用于根据OCI规范生成和运行容器的CLI（命令行界面）工具。 grub2中的grub2-set-bootflag实用程序存在安全漏洞，本地攻击者可利用该漏洞截断grub2配置文件，使设备无法在重启阶段启动系统。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

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/rhboot/grub2

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14865 https://seclists.org/oss-sec/2019/q4/101

Impacted products

Name
Grub 2 grub2-set-bootflag

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-14865"
    }
  },
  "description": "runc\u662f\u4e00\u6b3e\u7528\u4e8e\u6839\u636eOCI\u89c4\u8303\u751f\u6210\u548c\u8fd0\u884c\u5bb9\u5668\u7684CLI\uff08\u547d\u4ee4\u884c\u754c\u9762\uff09\u5de5\u5177\u3002\n\ngrub2\u4e2d\u7684grub2-set-bootflag\u5b9e\u7528\u7a0b\u5e8f\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u622a\u65adgrub2\u914d\u7f6e\u6587\u4ef6\uff0c\u4f7f\u8bbe\u5907\u65e0\u6cd5\u5728\u91cd\u542f\u9636\u6bb5\u542f\u52a8\u7cfb\u7edf\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/rhboot/grub2",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-46264",
  "openTime": "2019-12-20",
  "patchDescription": "runc\u662f\u4e00\u6b3e\u7528\u4e8e\u6839\u636eOCI\u89c4\u8303\u751f\u6210\u548c\u8fd0\u884c\u5bb9\u5668\u7684CLI\uff08\u547d\u4ee4\u884c\u754c\u9762\uff09\u5de5\u5177\u3002\r\n\r\ngrub2\u4e2d\u7684grub2-set-bootflag\u5b9e\u7528\u7a0b\u5e8f\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u622a\u65adgrub2\u914d\u7f6e\u6587\u4ef6\uff0c\u4f7f\u8bbe\u5907\u65e0\u6cd5\u5728\u91cd\u542f\u9636\u6bb5\u542f\u52a8\u7cfb\u7edf\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 grub2-set-bootflag\u5b9e\u7528\u7a0b\u5e8f\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Grub 2 grub2-set-bootflag"
  },
  "referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14865\r\nhttps://seclists.org/oss-sec/2019/q4/101",
  "serverity": "\u4e2d",
  "submitTime": "2019-12-02",
  "title": "grub2 grub2-set-bootflag\u5b9e\u7528\u7a0b\u5e8f\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2019-14865 (GCVE-0-2019-14865)

Vulnerability from cvelistv5 – Published: 2019-11-29 09:50 – Updated: 2025-02-13 16:27

Summary

A flaw was found in the grub2-set-bootflag utility of grub2. A local attacker could run this utility under resource pressure (for example by setting RLIMIT), causing grub2 configuration files to be truncated and leaving the system unbootable on subsequent reboots.

Severity

5.9 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H

CWE

CWE-267

Assigner

redhat redhat root

References

4 references

URL	Tags
https://seclists.org/oss-sec/2019/q4/101	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2020:0335	vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2024/02/06/3

Impacted products

1 product

Vendor	Product	Version
[UNKNOWN]	grub2	Affected: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T00:26:39.094Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://seclists.org/oss-sec/2019/q4/101"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14865"
          },
          {
            "name": "RHSA-2020:0335",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0335"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/02/06/3"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "grub2",
          "vendor": "[UNKNOWN]",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in the grub2-set-bootflag utility of grub2. A local attacker could run this utility under resource pressure (for example by setting RLIMIT), causing grub2 configuration files to be truncated and leaving the system unbootable on subsequent reboots."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-267",
              "description": "CWE-267",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-02-06T18:05:56.901Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://seclists.org/oss-sec/2019/q4/101"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14865"
        },
        {
          "name": "RHSA-2020:0335",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0335"
        },
        {
          "url": "http://www.openwall.com/lists/oss-security/2024/02/06/3"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2019-14865",
    "datePublished": "2019-11-29T09:50:12.000Z",
    "dateReserved": "2019-08-10T00:00:00.000Z",
    "dateUpdated": "2025-02-13T16:27:23.142Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-2019-46264

CVE-2019-14865 (GCVE-0-2019-14865)

Tags

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