cnvd-2018-05683
Vulnerability from cnvd
Title
FreeType 2空指针解引用漏洞
Description
FreeType 2是一种软件字体引擎，特点是小巧、高效、高度可定制及可移植，同时能产生高质量输出（字形图像）。 FreeType 2中的ttinterp.c中的Ins_GETVARIATION()函数存在空指针解引用漏洞。攻击者可通过特制字体文件利用该漏洞导致拒绝服务。
Severity
中
Patch Name
FreeType 2空指针解引用漏洞的补丁
Patch Description
FreeType 2是一种软件字体引擎，特点是小巧、高效、高度可定制及可移植，同时能产生高质量输出（字形图像）。 FreeType 2中的ttinterp.c中的Ins_GETVARIATION()函数存在空指针解引用漏洞。攻击者可通过特制字体文件利用该漏洞导致拒绝服务。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

厂商已发布漏洞修复程序，请及时关注更新： https://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=29c759284e305ec428703c9a5831d0b1fc3497ef

Reference
https://nvd.nist.gov/vuln/detail/CVE-2018-6942
Impacted products
Name
FreeType FreeType 2 <=2.9
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-6942"
    }
  },
  "description": "FreeType 2\u662f\u4e00\u79cd\u8f6f\u4ef6\u5b57\u4f53\u5f15\u64ce\uff0c\u7279\u70b9\u662f\u5c0f\u5de7\u3001\u9ad8\u6548\u3001\u9ad8\u5ea6\u53ef\u5b9a\u5236\u53ca\u53ef\u79fb\u690d\uff0c\u540c\u65f6\u80fd\u4ea7\u751f\u9ad8\u8d28\u91cf\u8f93\u51fa\uff08\u5b57\u5f62\u56fe\u50cf\uff09\u3002\r\n\r\nFreeType 2\u4e2d\u7684ttinterp.c\u4e2d\u7684Ins_GETVARIATION()\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u5b57\u4f53\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "ClusterFuzz-External",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=29c759284e305ec428703c9a5831d0b1fc3497ef",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-05683",
  "openTime": "2018-03-20",
  "patchDescription": "FreeType 2\u662f\u4e00\u79cd\u8f6f\u4ef6\u5b57\u4f53\u5f15\u64ce\uff0c\u7279\u70b9\u662f\u5c0f\u5de7\u3001\u9ad8\u6548\u3001\u9ad8\u5ea6\u53ef\u5b9a\u5236\u53ca\u53ef\u79fb\u690d\uff0c\u540c\u65f6\u80fd\u4ea7\u751f\u9ad8\u8d28\u91cf\u8f93\u51fa\uff08\u5b57\u5f62\u56fe\u50cf\uff09\u3002\r\n\r\nFreeType 2\u4e2d\u7684ttinterp.c\u4e2d\u7684Ins_GETVARIATION()\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u5b57\u4f53\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\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": "FreeType 2\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "FreeType FreeType 2 \u003c=2.9"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-6942",
  "serverity": "\u4e2d",
  "submitTime": "2018-02-13",
  "title": "FreeType 2\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}


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