Hancom Office 2010/Office 2014/Office 2018/Office NEO Compound File Document memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Hancom Office 2010, Office 2014, Office 2018 and Office NEO and classified as critical. The impacted element is an unknown function of the component Compound File Handler. Such manipulation as part of Document leads to memory corruption. This vulnerability is referenced as CVE-2018-5201. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Hancom Office 2010, Office 2014, Office 2018 and Office NEO (the affected version is unknown) and classified as critical. Affected by this issue is an unknown code of the component Compound File Handler. The manipulation as part of a Document leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Hancom Office 2018 10.0.0.8214 and earlier, Hancom Office NEO 9.6.1.10472 and earlier, Hancom Office 2014 9.1.1.4540 and earlier, Hancom Office 2010 8.5.8.1724 and earlier versions have a heap overflow vulnerability when handling Compound File in document. This result in a program crash or denial of service conditions.

The bug was discovered 12/20/2018. The weakness was published 12/21/2018 (Website). The advisory is shared for download at boho.or.kr. This vulnerability is handled as CVE-2018-5201 since 01/03/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/03/2018 🔍
12/20/2018 +351 days 🔍
12/21/2018 +1 days 🔍
12/21/2018 +0 days 🔍
12/22/2018 +1 days 🔍
04/23/2020 +488 days 🔍

Sourcesinfo

Advisory: boho.or.kr
Status: Not defined

CVE: CVE-2018-5201 (🔍)
GCVE (CVE): GCVE-0-2018-5201
GCVE (VulDB): GCVE-100-128300

Entryinfo

Created: 12/22/2018 10:23
Updated: 04/23/2020 12:42
Changes: 12/22/2018 10:23 (57), 04/23/2020 12:42 (1)
Complete: 🔍
Cache ID: 216::103

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