cnvd - cnvd-2017-15533

cnvd-2017-15533

Vulnerability from cnvd

Title: Linux kernel本地安全绕过漏洞（CNVD-2017-15533）

Description:

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。

Linux kernel存在本地安全绕过漏洞。攻击者利用此漏洞绕过安全限制并执行未经授权的操作。

Severity: 中

Patch Name: Linux kernel本地安全绕过漏洞（CNVD-2017-15533）的补丁

Patch Description:

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。

Linux kernel存在本地安全绕过漏洞。攻击者利用此漏洞绕过安全限制并执行未经授权的操作。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:

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://www.kernel.org/

Reference: http://www.securityfocus.com/bid/99131

Impacted products

Name
Linux kernel <=4.11.5

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "99131"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-1000371"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u5b58\u5728\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u5229\u7528\u6b64\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\u5e76\u6267\u884c\u672a\u7ecf\u6388\u6743\u7684\u64cd\u4f5c\u3002",
  "discovererName": "Qualys Research Labs",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-15533",
  "openTime": "2017-07-20",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u5b58\u5728\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u5229\u7528\u6b64\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\u5e76\u6267\u884c\u672a\u7ecf\u6388\u6743\u7684\u64cd\u4f5c\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\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2017-15533\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003c=4.11.5"
  },
  "referenceLink": "http://www.securityfocus.com/bid/99131",
  "serverity": "\u4e2d",
  "submitTime": "2017-06-20",
  "title": "Linux kernel\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2017-15533\uff09"
}

CVE-2017-1000371 (GCVE-0-2017-1000371)

Vulnerability from cvelistv5

Published

2017-06-19 16:00

Modified

2024-08-05 22:00

Severity ?

CWE

Summary

The offset2lib patch as used by the Linux Kernel contains a vulnerability, if RLIMIT_STACK is set to RLIM_INFINITY and 1 Gigabyte of memory is allocated (the maximum under the 1/4 restriction) then the stack will be grown down to 0x80000000, and as the PIE binary is mapped above 0x80000000 the minimum distance between the end of the PIE binary's read-write segment and the start of the stack becomes small enough that the stack guard page can be jumped over by an attacker. This affects Linux Kernel version 4.11.5. This is a different issue than CVE-2017-1000370 and CVE-2017-1000365. This issue appears to be limited to i386 based systems.

References

▼	URL	Tags
	https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt	x_refsource_MISC
	http://www.securityfocus.com/bid/99131	vdb-entry, x_refsource_BID
	http://www.debian.org/security/2017/dsa-3981	vendor-advisory, x_refsource_DEBIAN
	https://www.exploit-db.com/exploits/42276/	exploit, x_refsource_EXPLOIT-DB
	https://www.exploit-db.com/exploits/42273/	exploit, x_refsource_EXPLOIT-DB
	https://access.redhat.com/security/cve/CVE-2017-1000371	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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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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