Vulnerability-Lookup

CNVD-2020-02544

Vulnerability from cnvd - Published: 2020-01-17

Title

SerenityOS权限提升漏洞

Description

SerenityOS是一套用于x86计算机的图形化类Unix操作系统。 SerenityOS 2019-12-30之前版本中的Kernel/VM/MemoryManager.cpp文件存在安全漏洞。本地攻击者可通过覆盖返回地址利用该漏洞获取权限。

Severity

中

Patch Name

SerenityOS权限提升漏洞的补丁

Patch Description

SerenityOS是一套用于x86计算机的图形化类Unix操作系统。 SerenityOS 2019-12-30之前版本中的Kernel/VM/MemoryManager.cpp文件存在安全漏洞。本地攻击者可通过覆盖返回地址利用该漏洞获取权限。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/SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-20172

Impacted products

Name
SerenityOS SerenityOS <2019-12-30

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JSON

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-20172",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-20172"
    }
  },
  "description": "SerenityOS\u662f\u4e00\u5957\u7528\u4e8ex86\u8ba1\u7b97\u673a\u7684\u56fe\u5f62\u5316\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nSerenityOS 2019-12-30\u4e4b\u524d\u7248\u672c\u4e2d\u7684Kernel/VM/MemoryManager.cpp\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8986\u76d6\u8fd4\u56de\u5730\u5740\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u6743\u9650\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/SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-02544",
  "openTime": "2020-01-17",
  "patchDescription": "SerenityOS\u662f\u4e00\u5957\u7528\u4e8ex86\u8ba1\u7b97\u673a\u7684\u56fe\u5f62\u5316\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nSerenityOS 2019-12-30\u4e4b\u524d\u7248\u672c\u4e2d\u7684Kernel/VM/MemoryManager.cpp\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8986\u76d6\u8fd4\u56de\u5730\u5740\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u6743\u9650\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": "SerenityOS\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "SerenityOS SerenityOS \u003c2019-12-30"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-20172",
  "serverity": "\u4e2d",
  "submitTime": "2019-12-31",
  "title": "SerenityOS\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2019-20172 (GCVE-0-2019-20172)

Vulnerability from cvelistv5 – Published: 2019-12-31 02:50 – Updated: 2024-08-05 02:39

Summary

Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

2 references

URL	Tags
https://github.com/SerenityOS/serenity/commit/0fc…	x_refsource_MISC
https://github.com/Fire30/CTF-WRITEUPS/tree/maste…	x_refsource_MISC

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JSON

To clipboard

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          "dateUpdated": "2024-08-05T02:39:09.881Z",
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            "url": "https://github.com/SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9"
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            ],
            "url": "https://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom"
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          "url": "https://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom"
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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.
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CNVD-2020-02544

CVE-2019-20172 (GCVE-0-2019-20172)

Tags

Sightings

Nomenclature

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