Microsoft Internet Explorer Memory Corruption Vulnerability

緊急 9.8悪用確認済み（CISA KEV）CVE-2014-1776 · 27/04/2014 公開 · 17/06/2026 更新

Microsoft Internet Explorer Memory Corruption Vulnerability. 悪用が確認されています：CISA は 28/01/2022 にこの脆弱性を「既知の悪用された脆弱性（KEV）」カタログに追加しました。影響を受けるシステムは緊急に修正してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
internet explorer microsoft	`= 10= 11= 6= 7= 8= 9`	修正版なし

概要

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks."

参考情報

blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspx · Broken Link
secunia.com/advisories/57908 · Broken Link
securitytracker.com/id · Broken Link
fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.html · Broken Link
kb.cert.org/vuls/id/222929 · Mitigation
osvdb.org/106311 · Broken Link
securityfocus.com/bid/67075 · Broken Link
signalsec.com/cve-2014-1776-ie-0day-analysis · Exploit
docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021 · Patch
technet.microsoft.com/library/security/2963983 · Mitigation
vicarius.io/vsociety/posts/cve-2014-1776-use-after-free-vulnerability-in-microsoft-internet-explorer-detection-script · Third Party Advisory
vicarius.io/vsociety/posts/cve-2014-1776-use-after-free-vulnerability-in-microsoft-internet-explorer-mitigation-scripts · Third Party Advisory
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2014-1776

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