cnvd - cnvd-2018-26907

cnvd-2018-26907

Vulnerability from cnvd

Title: Linux kernel拒绝服务漏洞（CNVD-2018-26907）

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drivers/tty/n_tty.c文件存在安全漏洞。本地攻击者可利用该漏洞挂起伪终端设备或限制进一步使用伪终端设备。

Severity: 低

Patch Name: Linux kernel拒绝服务漏洞（CNVD-2018-26907）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中的drivers/tty/n_tty.c文件存在安全漏洞。本地攻击者可利用该漏洞挂起伪终端设备或限制进一步使用伪终端设备。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://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11

Reference: https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11

Impacted products

Name
Linux kernel <4.14.11

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-18386",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18386"
    }
  },
  "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\u4e2d\u7684drivers/tty/n_tty.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6302\u8d77\u4f2a\u7ec8\u7aef\u8bbe\u5907\u6216\u9650\u5236\u8fdb\u4e00\u6b65\u4f7f\u7528\u4f2a\u7ec8\u7aef\u8bbe\u5907\u3002",
  "discovererName": "unknown",
  "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://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-26907",
  "openTime": "2018-12-27",
  "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\u7684drivers/tty/n_tty.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6302\u8d77\u4f2a\u7ec8\u7aef\u8bbe\u5907\u6216\u9650\u5236\u8fdb\u4e00\u6b65\u4f7f\u7528\u4f2a\u7ec8\u7aef\u8bbe\u5907\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-26907\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003c4.14.11"
  },
  "referenceLink": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11",
  "serverity": "\u4f4e",
  "submitTime": "2018-10-19",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-26907\uff09"
}

CVE-2018-18386 (GCVE-0-2018-18386)

Vulnerability from cvelistv5

Published

2018-10-17 20:00

Modified

2024-08-05 11:08

Severity ?

CWE

Summary

drivers/tty/n_tty.c in the Linux kernel before 4.14.11 allows local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ.

References

▼	URL	Tags
	https://usn.ubuntu.com/3849-1/	vendor-advisory, x_refsource_UBUNTU
	https://bugzilla.suse.com/show_bug.cgi?id=1094825	x_refsource_MISC
	https://usn.ubuntu.com/3849-2/	vendor-advisory, x_refsource_UBUNTU
	https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11	x_refsource_MISC
	https://github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f056348	x_refsource_MISC
	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031f340185eddd05affcf72b740549f056348	x_refsource_MISC
	https://access.redhat.com/errata/RHSA-2019:0831	vendor-advisory, x_refsource_REDHAT

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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