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symantecSymantec Security ResponseSMNTC-75637
HistoryJul 14, 2015 - 12:00 a.m.

Microsoft Excel DLL Loading CVE-2015-2378 Remote Code Execution Vulnerability

2015-07-1400:00:00
Symantec Security Response
www.symantec.com
10

EPSS

0.565

Percentile

97.7%

Description

Microsoft Excel is prone to a remote code-execution vulnerability. An attacker can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition.

Technologies Affected

  • Microsoft Excel 2007 SP3
  • Microsoft Excel 2010 SP2 (32-bit editions)
  • Microsoft Excel 2010 SP2 (64-bit editions)
  • Microsoft Excel Viewer 2007 Service Pack 3
  • Microsoft Office Compatibility Pack SP3

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn’t needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of successful exploits.

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, do not open or handle files from unknown or untrusted locations.

Do not follow links provided by unknown or untrusted sources.
Never follow links provided by unfamiliar or untrusted sources or visit sites of questionable integrity.

Updates are available. Please see the references or vendor advisory for more information.