CVE-2017-0037 on CISA KEV

Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Casc

01What CISA says about this vulnerability

Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Cascading Style Sheets (CSS) token sequence and crafted JavaScript code that operates on a TH element.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• bugs.chromium.org — https://bugs.chromium.org/p/project-zero/issues/detail?id=1011
• 0patch.blogspot.si — https://0patch.blogspot.si/2017/03/0patching-another-0-day-internet.html
• www.securityfocus.com — http://www.securityfocus.com/bid/96088
• www.exploit-db.com — https://www.exploit-db.com/exploits/41454/
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0037
• www.exploit-db.com — https://www.exploit-db.com/exploits/43125/
• www.securitytracker.com — http://www.securitytracker.com/id/1037905
• www.exploit-db.com — https://www.exploit-db.com/exploits/42354/
• www.securitytracker.com — http://www.securitytracker.com/id/1037906

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Microsoft Corporation	Internet Browser	Internet Explorer 10 and 11 and Edge

06Detection

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