{"id":2923,"date":"2021-02-02T11:33:41","date_gmt":"2021-02-02T03:33:41","guid":{"rendered":"https:\/\/2018.entinux.com\/?p=2923"},"modified":"2026-04-02T18:03:47","modified_gmt":"2026-04-02T10:03:47","slug":"an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7","status":"publish","type":"post","link":"https:\/\/hk.entinux.com\/ja\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/","title":{"rendered":"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7"},"content":{"rendered":"\n

CESA-2017:1430<\/strong><\/p>\n\n\n\n

An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.<\/p>\n\n\n\n

Red Hat Product Security has rated this update as having a security impact of
Important. A Common Vulnerability Scoring System (CVSS) base score, which gives
a detailed severity rating, is available for each vulnerability from the CVE
link(s) in the References section.<\/p>\n\n\n\n

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux
on a variety of architectures. The qemu-kvm package provides the user-space
component for running virtual machines that use KVM.<\/p>\n\n\n\n

Security Fix(es):<\/strong><\/p>\n\n\n\n

* An out-of-bounds r\/w access issue was found in QEMU\u2019s Cirrus CLGD 54xx VGA
Emulator support. The vulnerability could occur while copying VGA data via
various bitblt functions. A privileged user inside a guest could use this flaw
to crash the QEMU process or, potentially, execute arbitrary code on the host
with privileges of the QEMU process. (CVE-2017-7980)<\/p>\n\n\n\n

* An out-of-bounds access issue was found in QEMU\u2019s Cirrus CLGD 54xx VGA
Emulator support. The vulnerability could occur while copying VGA data using
bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user
inside a guest could use this flaw to crash the QEMU process, resulting in
denial of service. (CVE-2017-7718)<\/p>\n\n\n\n

Red Hat would like to thank Jiangxin (PSIRT Huawei Inc) and Li Qiang (Qihoo 360
Gear Team) for reporting CVE-2017-7980 and Jiangxin (PSIRT Huawei Inc) for
reporting CVE-2017-7718.<\/p>\n\n\n\n

Bug Fix(es):<\/strong><\/p>\n\n\n\n

* Previously, guest virtual machines in some cases became unresponsive when the
\u201cpty\u201d back end of a serial device performed an irregular I\/O communication. This
update improves the handling of serial I\/O on guests, which prevents the
described problem from occurring. (BZ#1452332)<\/p>\n\n\n\n

Bugs Fixed<\/strong><\/p>\n\n\n\n

1443441<\/a> \u2013 CVE-2017-7718 Qemu: display: cirrus: OOB read access issue
1444371<\/a> \u2013 CVE-2017-7980 Qemu: display: cirrus: OOB r\/w access issues in bitblt routines
1452332<\/a> \u2013 RHEL 7.2 based VM (Virtual Machine) hung for several hours apparently waiting for lock held by main_loop<\/p>\n","protected":false},"excerpt":{"rendered":"

An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[72],"tags":[],"acf":false,"yoast_head":"\nAn update for qemu-kvm is now available for Red Hat Enterprise Linux 7 - Entinux<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hk.entinux.com\/ja\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7 - Entinux\" \/>\n<meta property=\"og:description\" content=\"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/\" \/>\n<meta property=\"og:site_name\" content=\"Entinux\" \/>\n<meta property=\"article:published_time\" content=\"2021-02-02T03:33:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-02T10:03:47+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/hk.entinux.com\/#website\",\"url\":\"https:\/\/hk.entinux.com\/\",\"name\":\"Entinux\",\"description\":\"Think Enterprise. Think Linux\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/hk.entinux.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"ja\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/#webpage\",\"url\":\"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/\",\"name\":\"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7 - Entinux\",\"isPartOf\":{\"@id\":\"https:\/\/hk.entinux.com\/#website\"},\"datePublished\":\"2021-02-02T03:33:41+00:00\",\"dateModified\":\"2026-04-02T10:03:47+00:00\",\"author\":{\"@id\":\"https:\/\/hk.entinux.com\/#\/schema\/person\/10add2c7a13d12bf06c4694fcb0741b4\"},\"breadcrumb\":{\"@id\":\"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7\"}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/hk.entinux.com\/#\/schema\/person\/10add2c7a13d12bf06c4694fcb0741b4\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/hk.entinux.com\/#personlogo\",\"inLanguage\":\"ja\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/6cd878336cb96008c245315b0abcb538?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/6cd878336cb96008c245315b0abcb538?s=96&d=mm&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/admin\"],\"url\":\"https:\/\/hk.entinux.com\/ja\/author\/admin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7 - Entinux","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/hk.entinux.com\/ja\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/","og_locale":"ja_JP","og_type":"article","og_title":"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7 - Entinux","og_description":"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.","og_url":"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/","og_site_name":"Entinux","article_published_time":"2021-02-02T03:33:41+00:00","article_modified_time":"2026-04-02T10:03:47+00:00","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"admin","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"2\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebSite","@id":"https:\/\/hk.entinux.com\/#website","url":"https:\/\/hk.entinux.com\/","name":"Entinux","description":"Think Enterprise. Think Linux","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/hk.entinux.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"ja"},{"@type":"WebPage","@id":"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/#webpage","url":"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/","name":"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7 - Entinux","isPartOf":{"@id":"https:\/\/hk.entinux.com\/#website"},"datePublished":"2021-02-02T03:33:41+00:00","dateModified":"2026-04-02T10:03:47+00:00","author":{"@id":"https:\/\/hk.entinux.com\/#\/schema\/person\/10add2c7a13d12bf06c4694fcb0741b4"},"breadcrumb":{"@id":"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/hk.entinux.com\/an-update-for-qemu-kvm-is-now-available-for-red-hat-enterprise-linux-7\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"An update for qemu-kvm is now available for Red Hat Enterprise Linux 7"}]},{"@type":"Person","@id":"https:\/\/hk.entinux.com\/#\/schema\/person\/10add2c7a13d12bf06c4694fcb0741b4","name":"admin","image":{"@type":"ImageObject","@id":"https:\/\/hk.entinux.com\/#personlogo","inLanguage":"ja","url":"https:\/\/secure.gravatar.com\/avatar\/6cd878336cb96008c245315b0abcb538?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6cd878336cb96008c245315b0abcb538?s=96&d=mm&r=g","caption":"admin"},"sameAs":["http:\/\/admin"],"url":"https:\/\/hk.entinux.com\/ja\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/posts\/2923"}],"collection":[{"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/comments?post=2923"}],"version-history":[{"count":1,"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/posts\/2923\/revisions"}],"predecessor-version":[{"id":2924,"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/posts\/2923\/revisions\/2924"}],"wp:attachment":[{"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/media?parent=2923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/categories?post=2923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hk.entinux.com\/ja\/wp-json\/wp\/v2\/tags?post=2923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}