cnvd - cnvd-2019-26831

cnvd-2019-26831

Vulnerability from cnvd

Title: Linux kernel tun子系统代码问题漏洞

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 tun子系统存在代码问题漏洞，攻击者可利用该漏洞实现拒绝服务攻击。

Severity: 中

Patch Name: Linux kernel tun子系统代码问题漏洞的补丁

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 tun子系统存在代码问题漏洞，攻击者可利用该漏洞实现拒绝服务攻击。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:

厂商已发布了漏洞修复程序，请及时关注更新： https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14

Reference: https://web.nvd.nist.gov//vuln/detail/CVE-2018-7191

Impacted products

Name
Linux Linux kernel <4.13.14

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-7191",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7191"
    }
  },
  "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 tun\u5b50\u7cfb\u7edf\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u73b0\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
  "discovererName": "Linux",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-26831",
  "openTime": "2019-08-08",
  "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 tun\u5b50\u7cfb\u7edf\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u73b0\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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 tun\u5b50\u7cfb\u7edf\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel \u003c4.13.14"
  },
  "referenceLink": "https://web.nvd.nist.gov//vuln/detail/CVE-2018-7191",
  "serverity": "\u4e2d",
  "submitTime": "2019-05-17",
  "title": "Linux kernel tun\u5b50\u7cfb\u7edf\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2018-7191 (GCVE-0-2018-7191)

Vulnerability from cvelistv5

Published

2019-05-17 04:27

Modified

2024-08-05 06:24

Severity ?

CWE

Summary

In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.

References

▼	URL	Tags
	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743792	x_refsource_MISC
	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748846	x_refsource_MISC
	https://github.com/torvalds/linux/commit/0ad646c81b2182f7fa67ec0c8c825e0ee165696d	x_refsource_MISC
	https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ad646c81b2182f7fa67ec0c8c825e0ee165696d	x_refsource_MISC
	https://github.com/torvalds/linux/commit/5c25f65fd1e42685f7ccd80e0621829c105785d9	x_refsource_MISC
	https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c25f65fd1e42685f7ccd80e0621829c105785d9	x_refsource_MISC
	https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.14	x_refsource_MISC
	http://www.securityfocus.com/bid/108380	vdb-entry, x_refsource_BID
	http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html	vendor-advisory, x_refsource_SUSE

Impacted products

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

Show details on NVD website

JSON

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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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