Vulnerability-Lookup

CNVD-2020-35957

Vulnerability from cnvd - Published: 2020-07-02

Title

Linux kernel缓冲区溢出漏洞（CNVD-2020-35957）

Description

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.5-rc1之后版本中mremap处理DAX Huge Pages的方式存在缓冲区溢出漏洞。攻击者可利用该漏洞提升权限。

Severity

中

Patch Name

Linux kernel缓冲区溢出漏洞（CNVD-2020-35957）的补丁

Patch Description

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.5-rc1之后版本中mremap处理DAX Huge Pages的方式存在缓冲区溢出漏洞。攻击者可利用该漏洞提升权限。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

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.kernel.org/

Reference

https://access.redhat.com/security/cve/cve-2020-10757

Impacted products

Name
Linux kernel >4.5-rc1

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-10757"
    }
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  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel 4.5-rc1\u4e4b\u540e\u7248\u672c\u4e2dmremap\u5904\u7406DAX Huge Pages\u7684\u65b9\u5f0f\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-35957",
  "openTime": "2020-07-02",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.5-rc1\u4e4b\u540e\u7248\u672c\u4e2dmremap\u5904\u7406DAX Huge Pages\u7684\u65b9\u5f0f\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\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": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-35957\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003e4.5-rc1"
  },
  "referenceLink": "https://access.redhat.com/security/cve/cve-2020-10757",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-08",
  "title": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-35957\uff09"
}

CVE-2020-10757 (GCVE-0-2020-10757)

Vulnerability from cvelistv5 – Published: 2020-06-09 12:40 – Updated: 2024-08-04 11:14

Summary

A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system.

Severity

No CVSS data available.

CWE

Improper Restriction of Operations within the Bounds of a Memory Buffer.

Assigner

redhat redhat root Scorecard

References

13 references

URL	Tags
https://www.openwall.com/lists/oss-security/2020/…	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1842525	vendor-advisoryx_refsource_REDHAT
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2020/dsa-4698	vendor-advisoryx_refsource_DEBIAN
https://www.debian.org/security/2020/dsa-4699	vendor-advisoryx_refsource_DEBIAN
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://security.netapp.com/advisory/ntap-2020070…	x_refsource_CONFIRM
https://usn.ubuntu.com/4439-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4426-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4440-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4483-1/	vendor-advisoryx_refsource_UBUNTU

Impacted products

1 product

Vendor	Product	Version
n/a	Kernel	Affected: All versions after 4.5-rc1.

Show details on NVD website

JSON

To clipboard

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      "problemTypes": [
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          "name": "DSA-4698",
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          "url": "https://www.debian.org/security/2020/dsa-4698"
        },
        {
          "name": "DSA-4699",
          "tags": [
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            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2020/dsa-4699"
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          "tags": [
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            "x_refsource_FEDORA"
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IEM47BXZJLODRH5YNNZSAQ2NVM63MYMC/"
        },
        {
          "name": "openSUSE-SU-2020:0801",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20200702-0004/"
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          "tags": [
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            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4439-1/"
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          "tags": [
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          "url": "https://usn.ubuntu.com/4426-1/"
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          "name": "USN-4440-1",
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            "x_refsource_UBUNTU"
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    "datePublished": "2020-06-09T12:40:56.000Z",
    "dateReserved": "2020-03-20T00:00:00.000Z",
    "dateUpdated": "2024-08-04T11:14:15.434Z",
    "state": "PUBLISHED"
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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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2020-35957

CVE-2020-10757 (GCVE-0-2020-10757)

Tags

Sightings

Nomenclature

Related by attack behaviour