VDB-97298 · CVE-2017-2789 · BID 96438

JustSystems Ichitaro Office 2016 memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

A vulnerability was found in JustSystems Ichitaro Office 2016. It has been rated as critical. Affected by this issue is an unknown code block. The manipulation with an unknown input 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:

When copying filedata into a buffer, JustSystems Ichitaro Office 2016 Trial will calculate two values to determine how much data to copy from the document. If both of these values are larger than the size of the buffer, the application will choose the smaller of the two and trust it to copy data from the file. This value is larger than the buffer size, which leads to a heap-based buffer overflow. This overflow corrupts an offset in the heap used in pointer arithmetic for writing data and can lead to code execution under the context of the application.

The bug was discovered 02/24/2017. The weakness was presented 02/24/2017 by Cisco with Cisco Talos (Website). The advisory is available at talosintelligence.com. This vulnerability is handled as CVE-2017-2789 since 12/01/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

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

See 97300 and 97299 for similar entries.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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
ATT&CK: Unknown

Local: No
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

12/01/2016 🔍
02/24/2017 +85 days 🔍
02/24/2017 +0 days 🔍
02/24/2017 +0 days 🔍
02/24/2017 +0 days 🔍
02/25/2017 +1 days 🔍
09/02/2020 +1285 days 🔍

Sourcesinfo

Advisory: talosintelligence.com
Researcher: Cisco
Organization: Cisco Talos
Status: Not defined

CVE: CVE-2017-2789 (🔍)
SecurityFocus: 96438 - JustSystems Ichitaro CVE-2017-2789 Heap Buffer Overflow Vulnerability
OSVDB: - CVE-2017-2789 - JustSystems - Ichitaro Office - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 02/25/2017 09:57
Updated: 09/02/2020 14:17
Changes: 02/25/2017 09:57 (58), 09/02/2020 14:17 (5)
Complete: 🔍

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