{"id":11580,"date":"2021-09-13T14:52:20","date_gmt":"2021-09-13T05:52:20","guid":{"rendered":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/?p=11580"},"modified":"2023-10-17T11:43:11","modified_gmt":"2023-10-17T02:43:11","slug":"ghostscript%e3%81%ae%e4%bb%bb%e6%84%8f%e3%81%ae%e3%82%b3%e3%83%9e%e3%83%b3%e3%83%89%e5%ae%9f%e8%a1%8c%e3%81%8c%e5%8f%af%e8%83%bd%e3%81%aa%e8%84%86%e5%bc%b1%e6%80%a7%ef%bc%88cve-2021-3781%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/public\/heads-up\/ghostscript%e3%81%ae%e4%bb%bb%e6%84%8f%e3%81%ae%e3%82%b3%e3%83%9e%e3%83%b3%e3%83%89%e5%ae%9f%e8%a1%8c%e3%81%8c%e5%8f%af%e8%83%bd%e3%81%aa%e8%84%86%e5%bc%b1%e6%80%a7%ef%bc%88cve-2021-3781%ef%bc%89\/","title":{"rendered":"Ghostscript\u306e\u4efb\u610f\u306e\u30b3\u30de\u30f3\u30c9\u5b9f\u884c\u304c\u53ef\u80fd\u306a\u8106\u5f31\u6027\uff08CVE-2021-3781\uff09\u306b\u95a2\u3059\u308b\u6ce8\u610f\u559a\u8d77"},"content":{"rendered":"\n

I. \u6982\u8981
2021\u5e749\u67089\u65e5\uff08\u73fe\u5730\u6642\u9593\uff09\u3001Ghostscript\u306e\u63d0\u4f9b\u5143\u3067\u3042\u308bArtifex Software\u793e\u304c\u3001Ghostscript\u306b\u304a\u3051\u308b\u4efb\u610f\u306e\u30b3\u30de\u30f3\u30c9\u5b9f\u884c\u304c\u53ef\u80fd\u306a\u8106\u5f31\u6027\uff08CVE-2021-3781\uff09\u306b\u95a2\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c9\u30d0\u30a4\u30b6\u30ea\u3092\u516c\u958b\u3057\u307e\u3057\u305f\u3002
Ghostscript\u304c\u52d5\u4f5c\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u306b\u304a\u3044\u3066\u3001\u653b\u6483\u8005\u304c\u672c\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u51e6\u7406\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u4efb\u610f\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002
\u53c2\u8003\uff1ahttps:\/\/www.jpcert.or.jp\/at\/2021\/at210039.html<\/a><\/p>\n

Artifex Software
SECURITY ADVISORY SEPTEMBER 9, 2021 – CVE-2021-3781
https:\/\/ghostscript.com\/CVE-2021-3781.html<\/a><\/p>\n

JPCERT\/CC\u306f\u3001\u672c\u8106\u5f31\u6027\u306e\u8a73\u7d30\u3092\u89e3\u8aac\u3059\u308b\u3068\u307f\u3089\u308c\u308b\u8cc7\u6599\u3084\u3001\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u5b9f\u8a3c\u30b3\u30fc\u30c9\u304c\u3059\u3067\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

Ghostscript\u3042\u308b\u3044\u306fGhostscript\u306b\u4f9d\u5b58\u3059\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001Artifex Software\u793e\u3084\u5404\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u30fc\u306a\u3069\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u3057\u3001\u901f\u3084\u304b\u306b\u5bfe\u7b56\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n


II. \u5bfe\u8c61
\u5bfe\u8c61\u3068\u306a\u308b\u88fd\u54c1\u3068\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n

– Ghostscript\/GhostPDL 9.54.0
– Ghostscript\/GhostPDL 9.53.3
– Ghostscript\/GhostPDL 9.52
– Ghostscript\/GhostPDL 9.50<\/p>\n

Ghostscript\u306b\u4f9d\u5b58\u3059\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3084\u3001\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u30fc\u304c\u63d0\u4f9b\u3057\u3066\u3044\u308bGhostscript\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u63d0\u4f9b\u5143\u3084\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u30fc\u304b\u3089\u306e\u60c5\u5831\u3082\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n


III. \u5bfe\u7b56
Artifex Software\u793e\u304b\u3089\u3001\u672c\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3059\u308b\u30d1\u30c3\u30c1\u304c\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u307e\u305f\u3001\u672c\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3059\u308bGhostscript\/GhostPDL 9.55.0\u306f\u30012021\u5e749\u6708\u672b\u9803\u306b\u516c\u958b\u3055\u308c\u308b\u4e88\u5b9a\u3068\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n

** \u66f4\u65b0: 2021\u5e749\u670829\u65e5\u8ffd\u8a18 *********************************************************************************
2021\u5e749\u670827\u65e5\uff08\u73fe\u5730\u6642\u9593\uff09\u3001Artifex Software\u793e\u304b\u3089\u672c\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3057\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002
\u516c\u958b\u3055\u308c\u305f\u60c5\u5831\u3092\u53c2\u7167\u306e\u3046\u3048\u3001\u4fee\u6b63\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u9069\u7528\u3092\u3054\u691c\u8a0e\u304f\u3060\u3055\u3044\u3002<\/p>\n

Artifex Software
Version 9.55.0 (2021-09-27)
https:\/\/www.ghostscript.com\/doc\/9.55.0\/News.htm
***************************************************************************************************************<\/p>\n


IV. \u7de9\u548c\u7b56
\u672c\u8106\u5f31\u6027\u3078\u306e\u65e9\u671f\u306e\u5bfe\u7b56\u5b9f\u65bd\u304c\u96e3\u3057\u3044\u5834\u5408\u3001\u8106\u5f31\u6027\u3092\u60aa\u7528\u3059\u308b\u653b\u6483\u306e\u5f71\u97ff\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u3001ImageMagick\u306a\u3069\u306eGhostscript\u3092\u547c\u3073\u51fa\u3059\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u304a\u3044\u3066\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u8a2d\u5b9a\u306e\u898b\u76f4\u3057\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u307e\u3067\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u3067\u306f\u3001\u60aa\u6027\u306aSVG\u5f62\u5f0f\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307e\u305b\u308b\u3053\u3068\u3067\u8106\u5f31\u6027\u3092\u60aa\u7528\u3067\u304d\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\u306a\u304a\u3001\u8a2d\u5b9a\u5909\u66f4\u306b\u3088\u308aSVG\u5f62\u5f0f\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u51e6\u7406\u304c\u3067\u304d\u306a\u304f\u306a\u308b\u306a\u3069\u306e\u5f71\u97ff\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u3001\u5b9f\u65bd\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

ImageMagick Studio LLC
Security Policy
https:\/\/imagemagick.org\/script\/security-policy.php<\/a><\/p>\n


V. \u53c2\u8003\u60c5\u5831
Artifex Software
SECURITY ADVISORY SEPTEMBER 9, 2021 – CVE-2021-3781
https:\/\/ghostscript.com\/CVE-2021-3781.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

I. \u6982\u89812021\u5e749\u67089\u65e5\uff08\u73fe\u5730\u6642\u9593\uff09\u3001Ghostscript\u306e\u63d0\u4f9b\u5143\u3067\u3042\u308bArtifex Software\u793e\u304c\u3001Ghostscript\u306b\u304a\u3051\u308b\u4efb\u610f\u306e\u30b3\u30de\u30f3\u30c9\u5b9f\u884c\u304c\u53ef\u80fd\u306a\u8106\u5f31\u6027\uff08CVE-2021-3781\uff09\u306b\u95a2\u3059\u308b\u30bb\u30ad […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[45],"_links":{"self":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts\/11580"}],"collection":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/comments?post=11580"}],"version-history":[{"count":2,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts\/11580\/revisions"}],"predecessor-version":[{"id":11628,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/posts\/11580\/revisions\/11628"}],"wp:attachment":[{"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/media?parent=11580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/categories?post=11580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.csirt.dendai.ac.jp\/csirt\/wp-json\/wp\/v2\/tags?post=11580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}