cnvd - cnvd-2015-05786

cnvd-2015-05786

Vulnerability from cnvd

Title: Linux Kernel 'vhost/vhost.c'本地拒绝服务漏洞

Description:

Linux Kernel是Linux操作系统的内核。

Linux Kernel的vhost驱动程序，执行命令VHOST_SET_LOG_FD ioctl时，对提供日志文件描述符的用户空间处理中存在漏洞，文件描述符始终没有被释放，持续消耗内核内存，可以访问/dev/vhost-net文件的本地特权用户利用此漏洞可造成拒绝服务。

Severity: 低

Patch Name: Linux Kernel 'vhost/vhost.c'本地拒绝服务漏洞的补丁

Patch Description:

Linux Kernel是Linux操作系统的内核。

Linux Kernel的vhost驱动程序，执行命令VHOST_SET_LOG_FD ioctl时，对提供日志文件描述符的用户空间处理中存在漏洞，文件描述符始终没有被释放，持续消耗内核内存，可以访问/dev/vhost-net文件的本地特权用户利用此漏洞可造成拒绝服务。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:

用户可参考如下供应商提供的安全公告获得补丁信息： https://lkml.org/lkml/2015/8/10/375

Reference: http://www.securityfocus.com/bid/76400

Impacted products

Name
Linux Kernel

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "76400"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-6252"
    }
  },
  "description": "Linux Kernel\u662fLinux\u64cd\u4f5c\u7cfb\u7edf\u7684\u5185\u6838\u3002\r\n\r\nLinux Kernel\u7684vhost\u9a71\u52a8\u7a0b\u5e8f\uff0c\u6267\u884c\u547d\u4ee4VHOST_SET_LOG_FD ioctl\u65f6\uff0c\u5bf9\u63d0\u4f9b\u65e5\u5fd7\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u7528\u6237\u7a7a\u95f4\u5904\u7406\u4e2d\u5b58\u5728\u6f0f\u6d1e\uff0c\u6587\u4ef6\u63cf\u8ff0\u7b26\u59cb\u7ec8\u6ca1\u6709\u88ab\u91ca\u653e\uff0c\u6301\u7eed\u6d88\u8017\u5185\u6838\u5185\u5b58\uff0c\u53ef\u4ee5\u8bbf\u95ee/dev/vhost-net\u6587\u4ef6\u7684\u672c\u5730\u7279\u6743\u7528\u6237\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Michael S. Tsirkin",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://lkml.org/lkml/2015/8/10/375",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-05786",
  "openTime": "2015-09-02",
  "patchDescription": "Linux Kernel\u662fLinux\u64cd\u4f5c\u7cfb\u7edf\u7684\u5185\u6838\u3002 \r\n\r\nLinux Kernel\u7684vhost\u9a71\u52a8\u7a0b\u5e8f\uff0c\u6267\u884c\u547d\u4ee4VHOST_SET_LOG_FD ioctl\u65f6\uff0c\u5bf9\u63d0\u4f9b\u65e5\u5fd7\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u7528\u6237\u7a7a\u95f4\u5904\u7406\u4e2d\u5b58\u5728\u6f0f\u6d1e\uff0c\u6587\u4ef6\u63cf\u8ff0\u7b26\u59cb\u7ec8\u6ca1\u6709\u88ab\u91ca\u653e\uff0c\u6301\u7eed\u6d88\u8017\u5185\u6838\u5185\u5b58\uff0c\u53ef\u4ee5\u8bbf\u95ee/dev/vhost-net\u6587\u4ef6\u7684\u672c\u5730\u7279\u6743\u7528\u6237\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u9020\u6210\u62d2\u7edd\u670d\u52a1\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 \u0027vhost/vhost.c\u0027\u672c\u5730\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel"
  },
  "referenceLink": "http://www.securityfocus.com/bid/76400",
  "serverity": "\u4f4e",
  "submitTime": "2015-09-01",
  "title": "Linux Kernel \u0027vhost/vhost.c\u0027\u672c\u5730\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-6252 (GCVE-0-2015-6252)

Vulnerability from cvelistv5

Published

2015-10-19 10:00

Modified

2024-08-06 07:15

Severity ?

CWE

Summary

The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.

References

▼	URL	Tags
	http://www.ubuntu.com/usn/USN-2748-1	vendor-advisory, x_refsource_UBUNTU
	http://www.securityfocus.com/bid/76400	vdb-entry, x_refsource_BID
	http://www.ubuntu.com/usn/USN-2751-1	vendor-advisory, x_refsource_UBUNTU
	http://www.openwall.com/lists/oss-security/2015/08/18/3	mailing-list, x_refsource_MLIST
	http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.5	x_refsource_CONFIRM
	http://www.debian.org/security/2015/dsa-3364	vendor-advisory, x_refsource_DEBIAN
	http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html	vendor-advisory, x_refsource_SUSE
	http://www.ubuntu.com/usn/USN-2752-1	vendor-advisory, x_refsource_UBUNTU
	http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html	vendor-advisory, x_refsource_SUSE
	http://www.ubuntu.com/usn/USN-2749-1	vendor-advisory, x_refsource_UBUNTU
	https://github.com/torvalds/linux/commit/7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=1251839	x_refsource_CONFIRM
	http://www.ubuntu.com/usn/USN-2760-1	vendor-advisory, x_refsource_UBUNTU
	http://www.ubuntu.com/usn/USN-2759-1	vendor-advisory, x_refsource_UBUNTU
	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html	vendor-advisory, x_refsource_SUSE
	http://www.securitytracker.com/id/1033666	vdb-entry, x_refsource_SECTRACK
	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5	x_refsource_CONFIRM
	http://www.ubuntu.com/usn/USN-2777-1	vendor-advisory, x_refsource_UBUNTU

Impacted products

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

Show details on NVD website

JSON

To clipboard

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              "refsource": "CONFIRM",
              "url": "https://github.com/torvalds/linux/commit/7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1251839",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1251839"
            },
            {
              "name": "USN-2760-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2760-1"
            },
            {
              "name": "USN-2759-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2759-1"
            },
            {
              "name": "SUSE-SU-2016:2074",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html"
            },
            {
              "name": "1033666",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1033666"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5",
              "refsource": "CONFIRM",
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5"
            },
            {
              "name": "USN-2777-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2777-1"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2015-6252",
    "datePublished": "2015-10-19T10:00:00",
    "dateReserved": "2015-08-17T00:00:00",
    "dateUpdated": "2024-08-06T07:15:13.291Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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