Vulnerability-Lookup

CNVD-2016-06254

Vulnerability from cnvd - Published: 2016-08-11

Title

fontconfig任意代码执行漏洞

Description

fontconfig是提供系统范围内字体设置,定制和允许应用程序访问的函数库。 fontconfig存在任意代码执行漏洞，攻击者可以利用该漏洞触发任意free()调用，这样会导致双重free攻击从而执行任意代码。如果结合setuid二进制文件使用特制的缓存文件，有可能会造成权限提升。

Severity

高

Patch Name

fontconfig任意代码执行漏洞的补丁

Patch Description

fontconfig是提供系统范围内字体设置,定制和允许应用程序访问的函数库。 fontconfig存在任意代码执行漏洞，攻击者可以利用该漏洞触发任意free()调用，这样会导致双重free攻击从而执行任意代码。如果结合setuid二进制文件使用特制的缓存文件，有可能会造成权限提升。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

目前该漏洞已在2.11.0-6.3+deb8u和2.11.0-6.5版本中修复，详情请关注厂商主页或有关网址： https://www.debian.org/security/

Reference

https://www.auscert.org.au/render.html?it=37514

Impacted products

Name
Debian fontconfig

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-5384"
    }
  },
  "description": "fontconfig\u662f\u63d0\u4f9b\u7cfb\u7edf\u8303\u56f4\u5185\u5b57\u4f53\u8bbe\u7f6e,\u5b9a\u5236\u548c\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u8bbf\u95ee\u7684\u51fd\u6570\u5e93\u3002\r\n\r\nfontconfig\u5b58\u5728\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u89e6\u53d1\u4efb\u610ffree()\u8c03\u7528\uff0c\u8fd9\u6837\u4f1a\u5bfc\u81f4\u53cc\u91cdfree\u653b\u51fb\u4ece\u800c\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u5982\u679c\u7ed3\u5408setuid\u4e8c\u8fdb\u5236\u6587\u4ef6\u4f7f\u7528\u7279\u5236\u7684\u7f13\u5b58\u6587\u4ef6\uff0c\u6709\u53ef\u80fd\u4f1a\u9020\u6210\u6743\u9650\u63d0\u5347\u3002",
  "discovererName": "unknown",
  "formalWay": "\u76ee\u524d\u8be5\u6f0f\u6d1e\u5df2\u57282.11.0-6.3+deb8u\u548c2.11.0-6.5\u7248\u672c\u4e2d\u4fee\u590d\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u6709\u5173\u7f51\u5740\uff1a\r\nhttps://www.debian.org/security/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-06254",
  "openTime": "2016-08-11",
  "patchDescription": "fontconfig\u662f\u63d0\u4f9b\u7cfb\u7edf\u8303\u56f4\u5185\u5b57\u4f53\u8bbe\u7f6e,\u5b9a\u5236\u548c\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u8bbf\u95ee\u7684\u51fd\u6570\u5e93\u3002\r\n\r\nfontconfig\u5b58\u5728\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u89e6\u53d1\u4efb\u610ffree()\u8c03\u7528\uff0c\u8fd9\u6837\u4f1a\u5bfc\u81f4\u53cc\u91cdfree\u653b\u51fb\u4ece\u800c\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u5982\u679c\u7ed3\u5408setuid\u4e8c\u8fdb\u5236\u6587\u4ef6\u4f7f\u7528\u7279\u5236\u7684\u7f13\u5b58\u6587\u4ef6\uff0c\u6709\u53ef\u80fd\u4f1a\u9020\u6210\u6743\u9650\u63d0\u5347\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": "fontconfig\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Debian fontconfig"
  },
  "referenceLink": "https://www.auscert.org.au/render.html?it=37514",
  "serverity": "\u9ad8",
  "submitTime": "2016-08-10",
  "title": "fontconfig\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}

CVE-2016-5384 (GCVE-0-2016-5384)

Vulnerability from cvelistv5 – Published: 2016-08-12 16:00 – Updated: 2024-08-06 01:00

Summary

fontconfig before 2.12.1 does not validate offsets, which allows local users to trigger arbitrary free calls and consequently conduct double free attacks and execute arbitrary code via a crafted cache file.

Severity

No CVSS data available.

CWE

Assigner

redhat redhat root

References

8 references

URL	Tags
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://www.ubuntu.com/usn/USN-3063-1	vendor-advisoryx_refsource_UBUNTU
https://lists.freedesktop.org/archives/fontconfig…	mailing-listx_refsource_MLIST
http://rhn.redhat.com/errata/RHSA-2016-2601.html	vendor-advisoryx_refsource_REDHAT
https://cgit.freedesktop.org/fontconfig/commit/?i…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/92339	vdb-entryx_refsource_BID
http://www.debian.org/security/2016/dsa-3644	vendor-advisoryx_refsource_DEBIAN
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Date Public

2016-08-05 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T01:00:59.957Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "FEDORA-2016-e23ab56ce3",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGOS4YYB7UYAWX5AEXJZHDIX4ZMSXSW5/"
          },
          {
            "name": "USN-3063-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3063-1"
          },
          {
            "name": "[Fontconfig] 20160805 fontconfig: Branch \u0027master\u0027 - 3 commits",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.freedesktop.org/archives/fontconfig/2016-August/005792.html"
          },
          {
            "name": "RHSA-2016:2601",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2016-2601.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://cgit.freedesktop.org/fontconfig/commit/?id=7a4a5bd7897d216f0794ca9dbce0a4a5c9d14940"
          },
          {
            "name": "92339",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/92339"
          },
          {
            "name": "DSA-3644",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2016/dsa-3644"
          },
          {
            "name": "FEDORA-2016-6802f2e52a",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CJ45VRAMCIISHOVKFVOQYQUSTUJP7FC/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-08-05T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "fontconfig before 2.12.1 does not validate offsets, which allows local users to trigger arbitrary free calls and consequently conduct double free attacks and execute arbitrary code via a crafted cache file."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-01-12T22:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "FEDORA-2016-e23ab56ce3",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGOS4YYB7UYAWX5AEXJZHDIX4ZMSXSW5/"
        },
        {
          "name": "USN-3063-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3063-1"
        },
        {
          "name": "[Fontconfig] 20160805 fontconfig: Branch \u0027master\u0027 - 3 commits",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.freedesktop.org/archives/fontconfig/2016-August/005792.html"
        },
        {
          "name": "RHSA-2016:2601",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2016-2601.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://cgit.freedesktop.org/fontconfig/commit/?id=7a4a5bd7897d216f0794ca9dbce0a4a5c9d14940"
        },
        {
          "name": "92339",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/92339"
        },
        {
          "name": "DSA-3644",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2016/dsa-3644"
        },
        {
          "name": "FEDORA-2016-6802f2e52a",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CJ45VRAMCIISHOVKFVOQYQUSTUJP7FC/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-5384",
    "datePublished": "2016-08-12T16:00:00.000Z",
    "dateReserved": "2016-06-10T00:00:00.000Z",
    "dateUpdated": "2024-08-06T01:00:59.957Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.