cnvd - cnvd-2016-00907

cnvd-2016-00907

Vulnerability from cnvd

Title: Mozilla Network Security Services安全机制绕过漏洞

Description:

Mozilla Firefox是美国Mozilla基金会开发的一款开源Web浏览器。Mozilla Network Security Services（NSS）是一个函数库（网络安全服务库），它可跨平台提供SSL、S/MIME和其他Internet安全标准支持。

Mozilla Firefox 44.0之前版本中使用的Mozilla NSS 3.21之前版本中的lib/freebl/mpi/mpi.c文件中的‘s_mp_div’函数存在安全漏洞，该漏洞源于‘mp_div’和‘mp_exptmod’函数的计算产生错误的结果。远程攻击者可利用该漏洞破坏加密保护机制。

Severity: 中

Patch Name: Mozilla Network Security Services安全机制绕过漏洞的补丁

Patch Description:

Mozilla Firefox 44.0之前版本中使用的Mozilla NSS 3.21之前版本中的lib/freebl/mpi/mpi.c文件中的‘s_mp_div’函数存在安全漏洞，该漏洞源于‘mp_div’和‘mp_exptmod’函数的计算产生错误的结果。远程攻击者可利用该漏洞破坏加密保护机制。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，补丁获取链接： http://www.mozilla.org/security/announce/2016/mfsa2016-07.html

Reference: https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-1938

Impacted products

Name
Mozilla Firefox <44.0

Show details on source website

JSON

To clipboard

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    "bid": {
      "bidNumber": "81955"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-1938"
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  "discovererName": "Hanno B\u0026ouml;ck",
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}

CVE-2016-1938 (GCVE-0-2016-1938)

Vulnerability from cvelistv5

Published

2016-01-31 18:00

Modified

2024-08-05 23:10

Severity ?

CWE

Summary

The s_mp_div function in lib/freebl/mpi/mpi.c in Mozilla Network Security Services (NSS) before 3.21, as used in Mozilla Firefox before 44.0, improperly divides numbers, which might make it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging use of the (1) mp_div or (2) mp_exptmod function.

References

▼	URL	Tags
	http://www.securityfocus.com/bid/81955	vdb-entry, x_refsource_BID
	http://www.debian.org/security/2016/dsa-3688	vendor-advisory, x_refsource_DEBIAN
	http://www.securitytracker.com/id/1034825	vdb-entry, x_refsource_SECTRACK
	https://security.gentoo.org/glsa/201701-46	vendor-advisory, x_refsource_GENTOO
	http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html	x_refsource_CONFIRM
	http://www.ubuntu.com/usn/USN-2903-2	vendor-advisory, x_refsource_UBUNTU
	http://www.ubuntu.com/usn/USN-2880-1	vendor-advisory, x_refsource_UBUNTU
	http://www.ubuntu.com/usn/USN-2903-1	vendor-advisory, x_refsource_UBUNTU
	http://www.ubuntu.com/usn/USN-2880-2	vendor-advisory, x_refsource_UBUNTU
	https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_exptmod.c	x_refsource_MISC
	https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00010.html	vendor-advisory, x_refsource_SUSE
	http://www.mozilla.org/security/announce/2016/mfsa2016-07.html	x_refsource_CONFIRM
	https://blog.fuzzing-project.org/37-Mozilla-NSS-Wrong-calculation-results-in-mp_div-and-mp_exptmod.html	x_refsource_MISC
	http://www.ubuntu.com/usn/USN-2973-1	vendor-advisory, x_refsource_UBUNTU
	https://bugzilla.mozilla.org/show_bug.cgi?id=1194947	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00002.html	vendor-advisory, x_refsource_SUSE
	http://www.securityfocus.com/bid/91787	vdb-entry, x_refsource_BID
	https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_div.c	x_refsource_MISC
	https://security.gentoo.org/glsa/201605-06	vendor-advisory, x_refsource_GENTOO
	https://bugzilla.mozilla.org/show_bug.cgi?id=1190248	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00001.html	vendor-advisory, x_refsource_SUSE
	https://hg.mozilla.org/projects/nss/diff/a555bf0fc23a/lib/freebl/mpi/mpi.c	x_refsource_CONFIRM

Impacted products

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

Show details on NVD website

JSON

To clipboard

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          },
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        {
          "name": "91787",
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                        "version_data": [
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                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The s_mp_div function in lib/freebl/mpi/mpi.c in Mozilla Network Security Services (NSS) before 3.21, as used in Mozilla Firefox before 44.0, improperly divides numbers, which might make it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging use of the (1) mp_div or (2) mp_exptmod function."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "81955",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/81955"
            },
            {
              "name": "DSA-3688",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2016/dsa-3688"
            },
            {
              "name": "1034825",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1034825"
            },
            {
              "name": "GLSA-201701-46",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/201701-46"
            },
            {
              "name": "http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html",
              "refsource": "CONFIRM",
              "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html"
            },
            {
              "name": "USN-2903-2",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2903-2"
            },
            {
              "name": "USN-2880-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2880-1"
            },
            {
              "name": "USN-2903-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2903-1"
            },
            {
              "name": "USN-2880-2",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2880-2"
            },
            {
              "name": "https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_exptmod.c",
              "refsource": "MISC",
              "url": "https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_exptmod.c"
            },
            {
              "name": "https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes",
              "refsource": "MISC",
              "url": "https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes"
            },
            {
              "name": "SUSE-SU-2016:0338",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00010.html"
            },
            {
              "name": "http://www.mozilla.org/security/announce/2016/mfsa2016-07.html",
              "refsource": "CONFIRM",
              "url": "http://www.mozilla.org/security/announce/2016/mfsa2016-07.html"
            },
            {
              "name": "https://blog.fuzzing-project.org/37-Mozilla-NSS-Wrong-calculation-results-in-mp_div-and-mp_exptmod.html",
              "refsource": "MISC",
              "url": "https://blog.fuzzing-project.org/37-Mozilla-NSS-Wrong-calculation-results-in-mp_div-and-mp_exptmod.html"
            },
            {
              "name": "USN-2973-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2973-1"
            },
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1194947",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1194947"
            },
            {
              "name": "openSUSE-SU-2016:0309",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00002.html"
            },
            {
              "name": "91787",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/91787"
            },
            {
              "name": "https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_div.c",
              "refsource": "MISC",
              "url": "https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_div.c"
            },
            {
              "name": "GLSA-201605-06",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/201605-06"
            },
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1190248",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1190248"
            },
            {
              "name": "openSUSE-SU-2016:0306",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00001.html"
            },
            {
              "name": "https://hg.mozilla.org/projects/nss/diff/a555bf0fc23a/lib/freebl/mpi/mpi.c",
              "refsource": "CONFIRM",
              "url": "https://hg.mozilla.org/projects/nss/diff/a555bf0fc23a/lib/freebl/mpi/mpi.c"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2016-1938",
    "datePublished": "2016-01-31T18:00:00",
    "dateReserved": "2016-01-20T00:00:00",
    "dateUpdated": "2024-08-05T23:10:40.307Z",
    "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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