Medium severity · published Aug 15, 2018
CVE-2018-8378
An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of…
5.5
CVSS
7.3%
EPSS
No
On KEV
Description
An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft Office Information Disclosure Vulnerability." This affects Word, Microsoft SharePoint Server, Microsoft Office Word Viewer, Microsoft Excel Viewer, Microsoft SharePoint, Microsoft Office.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.3% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OF
Office · Microsoft
2010 Service Pack 2 (32-bit editions); 2010 Service Pack 2 (64-bit editions); 2013 RT Service Pack 1; 2013 Service Pack 1 (32-bit editions); 2013 Service Pack 1 (64-bit editions); 2016 (32-bit edition); +5 more · source: vendor, NVD
SH
SharePoint · Microsoft
Enterprise Server 2013 Service Pack 1; Enterprise Server 2016 · source: vendor, NVD
ME
Microsoft Excel Viewer · Microsoft
2007 Service Pack 3 · source: vendor
MO
Microsoft Office Word Viewer · Microsoft
Microsoft Office Word Viewer · source: vendor
MS
Microsoft SharePoint Server · Microsoft
2013 Service Pack 1 · source: vendor
WO
Word · Microsoft
Automation Services on Microsoft SharePoint Server 2010 Service Pack 2 · source: vendor
EV
Excel Viewer · Microsoft
2007 · source: NVD
OC
Office Compatibility Pack · Microsoft
All versions, or not specified · source: NVD
OW
Office Web Apps · Microsoft
2010; 2013 · source: NVD
OW
Office Word Viewer · Microsoft
All versions, or not specified · source: NVD
SE
Sharepoint Enterprise Server 2013 · Microsoft
All versions, or not specified · source: NVD
SE
Sharepoint Enterprise Server 2016 · Microsoft
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-8378
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-8378
Third Party Advisory
http://www.securityfocus.com/bid/104996
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8378
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