Microsoft Excel up to 2016 C2R memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Microsoft Excel 2010 SP2/2013 RT SP1/2013 SP1/2016/2016 C2R. This issue affects some unknown processing. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2018-8379. The attack may be launched remotely. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Microsoft Excel 2010 SP2/2013 RT SP1/2013 SP1/2016/2016 C2R (Spreadsheet Software). It has been classified as critical. Affected is an unknown part. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 08/14/2018. The weakness was shared 08/14/2018 with Microsoft as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2018-8379 since 03/14/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

The vulnerability scanner Nessus provides a plugin with the ID 111694 (Security Updates for Microsoft Excel Products (August 2018)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110322 (Microsoft Office and Microsoft Office Services and Web Apps Security Update August 2018).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111694) and SecurityFocus (BID 104997†). The entries VDB-122870, VDB-122871, VDB-122872 and VDB-122873 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 111694
Nessus Name: Security Updates for Microsoft Excel Products (August 2018)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Timelineinfo

03/14/2018 🔍
08/14/2018 +152 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/14/2018 +0 days 🔍
08/15/2018 +0 days 🔍
05/02/2023 +1721 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-8379 (🔍)
GCVE (CVE): GCVE-0-2018-8379
GCVE (VulDB): GCVE-100-122874

OVAL: 🔍

SecurityFocus: 104997 - Microsoft Excel CVE-2018-8379 Remote Code Execution Vulnerability
SecurityTracker: 1041463

See also: 🔍

Entryinfo

Created: 08/14/2018 21:49
Updated: 05/02/2023 08:10
Changes: 08/14/2018 21:49 (75), 03/15/2020 15:35 (6), 05/02/2023 08:10 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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