CVE-2014-1776: Microsoft Internet Explorer Memory Corruption Vulnerability
First published: Sun Apr 27 2014(Updated: )
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."
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Internet Explorer | ||
| Internet Explorer | =6 | |
| Internet Explorer | =7 | |
| Internet Explorer | =8 | |
| Internet Explorer | =9 | |
| Internet Explorer | =10 | |
| Internet Explorer | =11 | |
| All of | ||
| Internet Explorer | =6 | |
| Any of | ||
| Microsoft Windows Server 2003 | =sp2 | |
| Microsoft Windows XP | =sp2 | |
| Microsoft Windows XP | =sp3 | |
| All of | ||
| Internet Explorer | =7 | |
| Any of | ||
| Microsoft Windows Server 2003 | =sp2 | |
| Microsoft Windows Server 2008 Itanium | =sp2 | |
| Microsoft Windows Vista | =sp2 | |
| Microsoft Windows XP | =sp2 | |
| Microsoft Windows XP | =sp3 | |
| All of | ||
| Internet Explorer | =8 | |
| Any of | ||
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows Server 2003 | =sp2 | |
| Microsoft Windows Server 2008 Itanium | =sp2 | |
| Microsoft Windows Server 2008 Itanium | =r2-sp1 | |
| Microsoft Windows Vista | =sp2 | |
| Microsoft Windows XP | =sp2 | |
| Microsoft Windows XP | =sp3 | |
| All of | ||
| Internet Explorer | =9 | |
| Any of | ||
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows Server 2008 Itanium | =sp2 | |
| Microsoft Windows Server 2008 Itanium | =r2-sp1 | |
| Microsoft Windows Vista | =sp2 | |
| All of | ||
| Internet Explorer | =10 | |
| Any of | ||
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.0 | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server 2008 Itanium | =r2-sp1 | |
| Microsoft Windows Server 2012 x64 | ||
| All of | ||
| Internet Explorer | =11 | |
| Any of | ||
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server 2008 Itanium | =r2-sp1 | |
| Microsoft Windows Server 2012 x64 | =r2 | |
| All of | ||
| =6 | ||
| Any of | ||
| =sp2 | ||
| =sp2 | ||
| =sp3 | ||
| All of | ||
| =7 | ||
| Any of | ||
| =sp2 | ||
| =sp2 | ||
| =sp2 | ||
| =sp2 | ||
| =sp3 | ||
| All of | ||
| =8 | ||
| Any of | ||
| =sp1 | ||
| =sp2 | ||
| =sp2 | ||
| =r2-sp1 | ||
| =sp2 | ||
| =sp2 | ||
| =sp3 | ||
| All of | ||
| =9 | ||
| Any of | ||
| =sp1 | ||
| =sp2 | ||
| =r2-sp1 | ||
| =sp2 | ||
| All of | ||
| =10 | ||
| Any of | ||
| =sp1 | ||
| =r2-sp1 | ||
| All of | ||
| =11 | ||
| Any of | ||
| =sp1 | ||
| =r2-sp1 | ||
| =r2 |
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Reference Links
- http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspx
- http://secunia.com/advisories/57908
- http://securitytracker.com/id?1030154
- http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.html
- http://www.kb.cert.org/vuls/id/222929
- http://www.osvdb.org/106311
- http://www.securityfocus.com/bid/67075
- http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021
- https://technet.microsoft.com/library/security/2963983
- https://learn.microsoft.com/en-us/security-updates/SecurityBulletins/2014/ms14-021?redirectedfrom=MSDN;
- https://nvd.nist.gov/vuln/detail/CVE-2014-1776
Frequently Asked Questions
What is the severity of CVE-2014-1776?
CVE-2014-1776 is rated as critical due to its potential for remote code execution and memory corruption.
How do I fix CVE-2014-1776?
To mitigate CVE-2014-1776, users should update Internet Explorer to the latest version provided by Microsoft.
Which versions of Internet Explorer are affected by CVE-2014-1776?
CVE-2014-1776 affects Internet Explorer versions 6 through 11.
Can CVE-2014-1776 lead to a denial of service?
Yes, CVE-2014-1776 can cause a denial of service due to memory corruption.
Is CVE-2014-1776 actively exploited in the wild?
Yes, CVE-2014-1776 was reported to be actively exploited in the wild as of April 2014.
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- canonical/internet explorer
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- version/internet explorer/8
- version/internet explorer/9
- version/internet explorer/10
- version/internet explorer/11
- canonical/microsoft windows server 2003
- version/microsoft windows server 2003/sp2
- canonical/microsoft windows xp
- version/microsoft windows xp/sp2
- version/microsoft windows xp/sp3
- canonical/microsoft windows server 2008 itanium
- version/microsoft windows server 2008 itanium/sp2
- canonical/microsoft windows vista
- version/microsoft windows vista/sp2
- canonical/microsoft windows 7
- version/microsoft windows 7/sp1
- version/microsoft windows server 2008 itanium/r2-sp1
- canonical/microsoft windows 8.0
- canonical/microsoft windows rt
- canonical/microsoft windows server 2012 x64
- canonical/microsoft windows 8.1
- version/microsoft windows server 2012 x64/r2