cnvd - cnvd-2020-35957

cnvd-2020-35957

Vulnerability from cnvd

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"
    }
  },
  "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",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.kernel.org/",
  "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

Modified

2024-08-04 11:14

Severity ?

CWE

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

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.

References

▼	URL	Tags
	https://www.openwall.com/lists/oss-security/2020/06/04/4	x_refsource_MISC
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5bfea2d9b17f1034a68147a8b03b9789af5700f9	x_refsource_MISC
	https://bugzilla.redhat.com/show_bug.cgi?id=1842525	vendor-advisory, x_refsource_REDHAT
	https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2020/dsa-4698	vendor-advisory, x_refsource_DEBIAN
	https://www.debian.org/security/2020/dsa-4699	vendor-advisory, x_refsource_DEBIAN
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IEM47BXZJLODRH5YNNZSAQ2NVM63MYMC/	vendor-advisory, x_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html	vendor-advisory, x_refsource_SUSE
	https://security.netapp.com/advisory/ntap-20200702-0004/	x_refsource_CONFIRM
	https://usn.ubuntu.com/4439-1/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/4426-1/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/4440-1/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/4483-1/	vendor-advisory, x_refsource_UBUNTU

Impacted products

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

Show details on NVD website

JSON

To clipboard

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            "name": "openSUSE-SU-2020:0801",
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          "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html"
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          "tags": [
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          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html"
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          "url": "https://security.netapp.com/advisory/ntap-20200702-0004/"
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          "tags": [
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          "url": "https://usn.ubuntu.com/4439-1/"
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          "tags": [
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            "x_refsource_UBUNTU"
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          "url": "https://usn.ubuntu.com/4426-1/"
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          "tags": [
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    "datePublished": "2020-06-09T12:40:56",
    "dateReserved": "2020-03-20T00:00:00",
    "dateUpdated": "2024-08-04T11:14:15.434Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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