cnvd - cnvd-2015-01962

cnvd-2015-01962

Vulnerability from cnvd

Title: GNU glibc拒绝服务漏洞（CNVD-2015-01962）

Description:

glibc是GNU发布的libc库，即c运行库。glibc是linux系统中最底层的api，几乎其它任何运行库都会依赖于glibc。

Name Service Switch (NSS)的文件后端未能从基于密钥查询API调用中隔离整个数据库的迭代，当应用在对数据库进行查询时对其迭代，则会进入无限循环，导致拒绝服务。

Severity: 中

Patch Name: GNU glibc拒绝服务漏洞（CNVD-2015-01962）的补丁

Patch Description:

glibc是GNU发布的libc库，即c运行库。glibc是linux系统中最底层的api，几乎其它任何运行库都会依赖于glibc。 Name Service Switch (NSS)的文件后端未能从基于密钥查询API调用中隔离整个数据库的迭代，当应用在对数据库进行查询时对其迭代，则会进入无限循环，导致拒绝服务。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:

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： http://www.gnu.org

Reference: http://www.securityfocus.com/bid/73038

Impacted products

Name
GNU glibc

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "73038"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2014-8121"
    }
  },
  "description": "glibc\u662fGNU\u53d1\u5e03\u7684libc\u5e93\uff0c\u5373c\u8fd0\u884c\u5e93\u3002glibc\u662flinux\u7cfb\u7edf\u4e2d\u6700\u5e95\u5c42\u7684api\uff0c\u51e0\u4e4e\u5176\u5b83\u4efb\u4f55\u8fd0\u884c\u5e93\u90fd\u4f1a\u4f9d\u8d56\u4e8eglibc\u3002\r\n\r\nName Service Switch (NSS)\u7684\u6587\u4ef6\u540e\u7aef\u672a\u80fd\u4ece\u57fa\u4e8e\u5bc6\u94a5\u67e5\u8be2API\u8c03\u7528\u4e2d\u9694\u79bb\u6574\u4e2a\u6570\u636e\u5e93\u7684\u8fed\u4ee3\uff0c\u5f53\u5e94\u7528\u5728\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u67e5\u8be2\u65f6\u5bf9\u5176\u8fed\u4ee3\uff0c\u5219\u4f1a\u8fdb\u5165\u65e0\u9650\u5faa\u73af\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Robin Hack of Red Hat",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttp://www.gnu.org",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-01962",
  "openTime": "2015-03-25",
  "patchDescription": "glibc\u662fGNU\u53d1\u5e03\u7684libc\u5e93\uff0c\u5373c\u8fd0\u884c\u5e93\u3002glibc\u662flinux\u7cfb\u7edf\u4e2d\u6700\u5e95\u5c42\u7684api\uff0c\u51e0\u4e4e\u5176\u5b83\u4efb\u4f55\u8fd0\u884c\u5e93\u90fd\u4f1a\u4f9d\u8d56\u4e8eglibc\u3002\r\nName Service Switch (NSS)\u7684\u6587\u4ef6\u540e\u7aef\u672a\u80fd\u4ece\u57fa\u4e8e\u5bc6\u94a5\u67e5\u8be2API\u8c03\u7528\u4e2d\u9694\u79bb\u6574\u4e2a\u6570\u636e\u5e93\u7684\u8fed\u4ee3\uff0c\u5f53\u5e94\u7528\u5728\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u67e5\u8be2\u65f6\u5bf9\u5176\u8fed\u4ee3\uff0c\u5219\u4f1a\u8fdb\u5165\u65e0\u9650\u5faa\u73af\uff0c\u5bfc\u81f4\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": "GNU glibc\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-01962\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "GNU glibc"
  },
  "referenceLink": "http://www.securityfocus.com/bid/73038",
  "serverity": "\u4e2d",
  "submitTime": "2015-03-24",
  "title": "GNU glibc\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-01962\uff09"
}

CVE-2014-8121 (GCVE-0-2014-8121)

Vulnerability from cvelistv5

Published

2015-03-27 14:00

Modified

2024-08-06 13:10

Severity ?

CWE

Summary

DB_LOOKUP in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka glibc or libc6) 2.21 and earlier does not properly check if a file is open, which allows remote attackers to cause a denial of service (infinite loop) by performing a look-up on a database while iterating over it, which triggers the file pointer to be reset.

References

▼	URL	Tags
	http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html	vendor-advisory, x_refsource_SUSE
	https://bugzilla.redhat.com/show_bug.cgi?id=1165192	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html	vendor-advisory, x_refsource_SUSE
	http://www.ubuntu.com/usn/USN-2985-2	vendor-advisory, x_refsource_UBUNTU
	https://security.gentoo.org/glsa/201602-02	vendor-advisory, x_refsource_GENTOO
	https://sourceware.org/ml/libc-alpha/2015-02/msg00617.html	mailing-list, x_refsource_MLIST
	http://rhn.redhat.com/errata/RHSA-2015-0327.html	vendor-advisory, x_refsource_REDHAT
	http://www.securityfocus.com/bid/73038	vdb-entry, x_refsource_BID
	http://www.debian.org/security/2016/dsa-3480	vendor-advisory, x_refsource_DEBIAN
	http://www.ubuntu.com/usn/USN-2985-1	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

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T13:10:50.918Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "SUSE-SU-2015:1424",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1165192"
          },
          {
            "name": "SUSE-SU-2016:0470",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html"
          },
          {
            "name": "USN-2985-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2985-2"
          },
          {
            "name": "GLSA-201602-02",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201602-02"
          },
          {
            "name": "[libc-alpha] 20150223 [PATCH] CVE-2014-8121: Fix nss_files file management [BZ#18007]",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://sourceware.org/ml/libc-alpha/2015-02/msg00617.html"
          },
          {
            "name": "RHSA-2015:0327",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2015-0327.html"
          },
          {
            "name": "73038",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/73038"
          },
          {
            "name": "DSA-3480",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2016/dsa-3480"
          },
          {
            "name": "USN-2985-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-2985-1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2015-02-23T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "DB_LOOKUP in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka glibc or libc6) 2.21 and earlier does not properly check if a file is open, which allows remote attackers to cause a denial of service (infinite loop) by performing a look-up on a database while iterating over it, which triggers the file pointer to be reset."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2016-11-30T18:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "SUSE-SU-2015:1424",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1165192"
        },
        {
          "name": "SUSE-SU-2016:0470",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html"
        },
        {
          "name": "USN-2985-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2985-2"
        },
        {
          "name": "GLSA-201602-02",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201602-02"
        },
        {
          "name": "[libc-alpha] 20150223 [PATCH] CVE-2014-8121: Fix nss_files file management [BZ#18007]",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://sourceware.org/ml/libc-alpha/2015-02/msg00617.html"
        },
        {
          "name": "RHSA-2015:0327",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2015-0327.html"
        },
        {
          "name": "73038",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/73038"
        },
        {
          "name": "DSA-3480",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2016/dsa-3480"
        },
        {
          "name": "USN-2985-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-2985-1"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2014-8121",
    "datePublished": "2015-03-27T14:00:00",
    "dateReserved": "2014-10-10T00:00:00",
    "dateUpdated": "2024-08-06T13:10:50.918Z",
    "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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