cnvd - cnvd-2019-00366

cnvd-2019-00366

Vulnerability from cnvd

Title: Linux kernel拒绝服务漏洞（CNVD-2019-00366）

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 kernel4.19.13及之前版本中的net/can/gw.c文件的can_can_gw_rcv存在拒绝服务漏洞，攻击者可利用该漏洞造成系统崩溃。

Severity: 中

Formal description:

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.kernel.org/

Reference: https://bugzilla.suse.com/show_bug.cgi?id=1120386 https://marc.info/?l=linux-netdev&m=154651842302479&w=2

Impacted products

Name
Linux kernel <=4.19.13

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-3701"
    }
  },
  "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 kernel4.19.13\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684net/can/gw.c\u6587\u4ef6\u7684can_can_gw_rcv\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u7cfb\u7edf\u5d29\u6e83\u3002",
  "discovererName": "Muyu Yu",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-00366",
  "openTime": "2019-01-04",
  "products": {
    "product": "Linux kernel \u003c=4.19.13"
  },
  "referenceLink": "https://bugzilla.suse.com/show_bug.cgi?id=1120386\r\nhttps://marc.info/?l=linux-netdev\u0026m=154651842302479\u0026w=2",
  "serverity": "\u4e2d",
  "submitTime": "2019-01-04",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2019-00366\uff09"
}

CVE-2019-3701 (GCVE-0-2019-3701)

Vulnerability from cvelistv5

Published

2019-01-03 16:00

Modified

2024-08-04 19:19

Severity ?

CWE

Summary

An issue was discovered in can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user "root" with CAP_NET_ADMIN can create a CAN frame modification rule that makes the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames.

References

▼	URL	Tags
	https://marc.info/?l=linux-netdev&m=154651842302479&w=2	x_refsource_MISC
	http://www.securityfocus.com/bid/106443	vdb-entry, x_refsource_BID
	https://bugzilla.suse.com/show_bug.cgi?id=1120386	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html	mailing-list, x_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html	mailing-list, x_refsource_MLIST
	https://usn.ubuntu.com/3932-1/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/3932-2/	vendor-advisory, x_refsource_UBUNTU
	https://support.f5.com/csp/article/K17957133	x_refsource_CONFIRM
	https://marc.info/?l=linux-netdev&m=154661373531512&w=2	x_refsource_MISC
	https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html	mailing-list, x_refsource_MLIST
	https://usn.ubuntu.com/4115-1/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/4118-1/	vendor-advisory, x_refsource_UBUNTU
	http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html	vendor-advisory, x_refsource_SUSE

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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