cnvd - cnvd-2017-38518

cnvd-2017-38518

Vulnerability from cnvd

Title: Linux kernel拒绝服务漏洞（CNVD-2017-38518）

Description:

Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。

Linux kernel 4.9.x至4.9.71版本存在拒绝服务漏洞。该漏洞产生的原因是Linux kernel中的kernel/bpf/verifier.c未能正确检查指针值和BPF栈之间的关系。本地攻击者可利用该漏洞导致拒绝服务（整数溢出或无效内存访问）。

Severity: 中

Patch Name: Linux kernel拒绝服务漏洞（CNVD-2017-38518）的补丁

Patch Description:

Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。

Linux kernel 4.9.x至4.9.71版本存在拒绝服务漏洞。该漏洞产生的原因是Linux kernel中的kernel/bpf/verifier.c未能正确检查指针值和BPF栈之间的关系。本地攻击者可利用该漏洞导致拒绝服务（整数溢出或无效内存访问）。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，补丁获取链接： https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security

Reference: https://www.debian.org/security/2017/dsa-4073

Impacted products

Name
Linux kernel >=4.9.*，<=4.9.71

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-17863"
    }
  },
  "description": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\r\n\r\nLinux kernel 4.9.x\u81f34.9.71\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662fLinux kernel\u4e2d\u7684kernel/bpf/verifier.c\u672a\u80fd\u6b63\u786e\u68c0\u67e5\u6307\u9488\u503c\u548cBPF\u6808\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u6574\u6570\u6ea2\u51fa\u6216\u65e0\u6548\u5185\u5b58\u8bbf\u95ee\uff09\u3002",
  "discovererName": "Jann Horn \u003cjannh@google.com\u003e",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-38518",
  "openTime": "2017-12-29",
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  "patchName": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-38518\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003e=4.9.*\uff0c\u003c=4.9.71"
  },
  "referenceLink": "https://www.debian.org/security/2017/dsa-4073",
  "serverity": "\u4e2d",
  "submitTime": "2017-12-25",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-38518\uff09"
}

CVE-2017-17863 (GCVE-0-2017-17863)

Vulnerability from cvelistv5

Published

2017-12-23 17:00

Modified

2024-08-05 21:06

Severity ?

CWE

Summary

kernel/bpf/verifier.c in the Linux kernel 4.9.x through 4.9.71 does not check the relationship between pointer values and the BPF stack, which allows local users to cause a denial of service (integer overflow or invalid memory access) or possibly have unspecified other impact.

References

▼	URL	Tags
	http://www.securitytracker.com/id/1040058	vdb-entry, x_refsource_SECTRACK
	https://usn.ubuntu.com/3523-3/	vendor-advisory, x_refsource_UBUNTU
	https://www.spinics.net/lists/stable/msg206985.html	x_refsource_MISC
	http://www.securityfocus.com/bid/102321	vdb-entry, x_refsource_BID
	https://www.debian.org/security/2017/dsa-4073	vendor-advisory, x_refsource_DEBIAN
	https://usn.ubuntu.com/usn/usn-3523-2/	vendor-advisory, x_refsource_UBUNTU
	https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security	x_refsource_MISC

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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