cnvd - cnvd-2018-05305

cnvd-2018-05305

Vulnerability from cnvd

Title: Linux kernel竞争条件漏洞（CNVD-2018-05305）

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中的arch/x86/kernel/cpu/mcheck/mce.c文件的‘store_int_with_restart()’函数存在竞争条件漏洞。本地攻击者可通过向/sys/devices/system/machinecheck/machinecheck目录下的check_interval文件写入值利用该漏洞造成拒绝服务（内核错误和内核挂起）。

Severity: 低

Patch Name: Linux kernel竞争条件漏洞（CNVD-2018-05305）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。

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://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf https://lkml.org/lkml/2018/3/2/970

Impacted products

Name
Linux kernel <=4.15.7

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "103356"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-7995"
    }
  },
  "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\r\n\r\nLinux kernel\u4e2d\u7684arch/x86/kernel/cpu/mcheck/mce.c\u6587\u4ef6\u7684\u2018store_int_with_restart()\u2019\u51fd\u6570\u5b58\u5728\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411/sys/devices/system/machinecheck/machinecheck\u76ee\u5f55\u4e0b\u7684check_interval\u6587\u4ef6\u5199\u5165\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u6838\u9519\u8bef\u548c\u5185\u6838\u6302\u8d77\uff09\u3002",
  "discovererName": "Seunghun Han",
  "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://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-05305",
  "openTime": "2018-03-15",
  "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\u4e2d\u7684arch/x86/kernel/cpu/mcheck/mce.c\u6587\u4ef6\u7684\u2018store_int_with_restart()\u2019\u51fd\u6570\u5b58\u5728\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411/sys/devices/system/machinecheck/machinecheck\u76ee\u5f55\u4e0b\u7684check_interval\u6587\u4ef6\u5199\u5165\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u6838\u9519\u8bef\u548c\u5185\u6838\u6302\u8d77\uff09\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\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\uff08CNVD-2018-05305\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003c=4.15.7"
  },
  "referenceLink": "https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf\r\nhttps://lkml.org/lkml/2018/3/2/970",
  "serverity": "\u4f4e",
  "submitTime": "2018-03-14",
  "title": "Linux kernel\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\uff08CNVD-2018-05305\uff09"
}

CVE-2018-7995 (GCVE-0-2018-7995)

Vulnerability from cvelistv5

Published

2018-03-09 15:00

Modified

2024-08-05 06:37

Severity ?

CWE

Summary

Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory. NOTE: a third party has indicated that this report is not security relevant

References

▼	URL	Tags
	https://www.debian.org/security/2018/dsa-4187	vendor-advisory, x_refsource_DEBIAN
	https://usn.ubuntu.com/3654-1/	vendor-advisory, x_refsource_UBUNTU
	https://bugzilla.suse.com/show_bug.cgi?id=1084755	x_refsource_MISC
	https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf	x_refsource_MISC
	https://www.debian.org/security/2018/dsa-4188	vendor-advisory, x_refsource_DEBIAN
	https://lkml.org/lkml/2018/3/2/970	x_refsource_MISC
	http://www.securityfocus.com/bid/103356	vdb-entry, x_refsource_BID
	https://usn.ubuntu.com/3654-2/	vendor-advisory, x_refsource_UBUNTU
	https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html	mailing-list, x_refsource_MLIST
	https://usn.ubuntu.com/3656-1/	vendor-advisory, x_refsource_UBUNTU

Impacted products

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

Show details on NVD website

JSON

To clipboard

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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-18T19:22:32.395652Z",
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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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