cnvd - cnvd-2015-07657

cnvd-2015-07657

Vulnerability from cnvd

Title: Linux kernel IPv6栈拒绝服务漏洞

Description:

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。

Linux kernel 4.0之前版本的IPv6栈中的net/ipv6/addrconf.c文件存在安全漏洞。由于程序未能检查新的‘MTU’值是否有效。攻击者可通过小于最小值或大于接口MTU（最大传输单元）的值利用该漏洞造成拒绝服务（数据包丢失）。

Severity: 中

Patch Name: Linux kernel IPv6栈拒绝服务漏洞的补丁

Patch Description:

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。

Linux kernel 4.0之前版本的IPv6栈中的net/ipv6/addrconf.c文件存在安全漏洞。由于程序未能检查新的‘MTU’值是否有效。攻击者可通过小于最小值或大于接口MTU（最大传输单元）的值利用该漏洞造成拒绝服务（数据包丢失）。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:

目前厂商已经发布了升级补丁以修复此安全问题，详情请关注厂商主页： https://www.kernel.org/

Reference: https://bugs.launchpad.net/bugs/1500810 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77751427a1ff25b27d47a4c36b12c3c8667855ac

Impacted products

Name
Linux Kernel <4.0

Show details on source website

JSON

To clipboard

{
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    "cve": {
      "cveNumber": "CVE-2015-8215"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.0\u4e4b\u524d\u7248\u672c\u7684IPv6\u6808\u4e2d\u7684net/ipv6/addrconf.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u68c0\u67e5\u65b0\u7684\u2018MTU\u2019\u503c\u662f\u5426\u6709\u6548\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c0f\u4e8e\u6700\u5c0f\u503c\u6216\u5927\u4e8e\u63a5\u53e3MTU\uff08\u6700\u5927\u4f20\u8f93\u5355\u5143\uff09\u7684\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u6570\u636e\u5305\u4e22\u5931\uff09\u3002",
  "discovererName": "Luis Henriques (henrix)",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07657",
  "openTime": "2015-11-19",
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  "patchName": "Linux kernel IPv6\u6808\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
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  "submitTime": "2015-11-18",
  "title": "Linux kernel IPv6\u6808\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-8215 (GCVE-0-2015-8215)

Vulnerability from cvelistv5

Published

2015-11-16 21:00

Modified

2024-08-06 08:13

Severity ?

CWE

Summary

net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel before 4.0 does not validate attempted changes to the MTU value, which allows context-dependent attackers to cause a denial of service (packet loss) via a value that is (1) smaller than the minimum compliant value or (2) larger than the MTU of an interface, as demonstrated by a Router Advertisement (RA) message that is not validated by a daemon, a different vulnerability than CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is limited to the NetworkManager product.

References

▼	URL	Tags
	http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html	vendor-advisory, x_refsource_SUSE
	http://rhn.redhat.com/errata/RHSA-2016-0855.html	vendor-advisory, x_refsource_REDHAT
	http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html	vendor-advisory, x_refsource_SUSE
	http://www.debian.org/security/2015/dsa-3364	vendor-advisory, x_refsource_DEBIAN
	http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html	vendor-advisory, x_refsource_SUSE
	https://bugs.launchpad.net/bugs/1500810	x_refsource_CONFIRM
	https://bugzilla.novell.com/show_bug.cgi?id=944296	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/85274	vdb-entry, x_refsource_BID
	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html	vendor-advisory, x_refsource_SUSE
	https://github.com/torvalds/linux/commit/77751427a1ff25b27d47a4c36b12c3c8667855ac	x_refsource_CONFIRM
	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77751427a1ff25b27d47a4c36b12c3c8667855ac	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=1192132	x_refsource_MISC

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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