cnvd - cnvd-2018-19435

cnvd-2018-19435

Vulnerability from cnvd

Title: Linux kernel拒绝服务漏洞（CNVD-2018-19435）

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 4.19-rc1版本至4.19-rc3版本中的net/ipv4/ip_fragment.c文件的‘ip_frag_reasm()’函数存在拒绝服务漏洞，远程攻击者可利用该漏洞造成拒绝服务（系统崩溃）。

Severity: 中

Patch Name: Linux kernel拒绝服务漏洞（CNVD-2018-19435）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 4.19-rc1版本至4.19-rc3版本中的net/ipv4/ip_fragment.c文件的‘ip_frag_reasm()’函数存在拒绝服务漏洞，远程攻击者可利用该漏洞造成拒绝服务（系统崩溃）。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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d407b071dc369c26a38398326ee2be53651cfe4

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14641 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d407b071dc369c26a38398326ee2be53651cfe4 https://seclists.org/oss-sec/2018/q3/248

Impacted products

Name
Linux kernel >=4.19-rc1，<=4.19-rc3

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-14641"
    }
  },
  "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 4.19-rc1\u7248\u672c\u81f34.19-rc3\u7248\u672c\u4e2d\u7684net/ipv4/ip_fragment.c\u6587\u4ef6\u7684\u2018ip_frag_reasm()\u2019\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\uff09\u3002",
  "discovererName": "Taehee Yoo",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d407b071dc369c26a38398326ee2be53651cfe4",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-19435",
  "openTime": "2018-09-20",
  "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 4.19-rc1\u7248\u672c\u81f34.19-rc3\u7248\u672c\u4e2d\u7684net/ipv4/ip_fragment.c\u6587\u4ef6\u7684\u2018ip_frag_reasm()\u2019\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-19435\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003e=4.19-rc1\uff0c\u003c=4.19-rc3"
  },
  "referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14641\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d407b071dc369c26a38398326ee2be53651cfe4\r\nhttps://seclists.org/oss-sec/2018/q3/248",
  "serverity": "\u4e2d",
  "submitTime": "2018-09-20",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-19435\uff09"
}

CVE-2018-14641 (GCVE-0-2018-14641)

Vulnerability from cvelistv5

Published

2018-09-18 13:00

Modified

2024-08-05 09:38

Severity ?

6.5 (Medium) - CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-456

Summary

A security flaw was found in the ip_frag_reasm() function in net/ipv4/ip_fragment.c in the Linux kernel from 4.19-rc1 to 4.19-rc3 inclusive, which can cause a later system crash in ip_do_fragment(). With certain non-default, but non-rare, configuration of a victim host, an attacker can trigger this crash remotely, thus leading to a remote denial-of-service.

References

▼	URL	Tags
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d407b071dc369c26a38398326ee2be53651cfe4	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14641	x_refsource_CONFIRM
	https://access.redhat.com/errata/RHSA-2018:2948	vendor-advisory, x_refsource_REDHAT
	https://seclists.org/oss-sec/2018/q3/248	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	The Linux Foundation	kernel	Version: from 4.19-rc1 to 4.19-rc3 inclusive

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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