VDB-97299 · CVE-2017-2790 · BID 96442

JustSystems Ichitaro Office Excel File memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in JustSystems Ichitaro Office. This issue affects some unknown processing of the component Excel File Handler. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2017-2790. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in JustSystems Ichitaro Office (version now known). This affects some unknown processing of the component Excel File Handler. 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 summary by CVE is:

When processing a record type of 0x3c from a Workbook stream from an Excel file (.xls), JustSystems Ichitaro Office trusts that the size is greater than zero, subtracts one from the length, and uses this result as the size for a memcpy. This results in a heap-based buffer overflow and can lead to code execution under the context of the application.

The bug was discovered 02/24/2017. The weakness was shared 02/24/2017 by Cisco with Cisco Talos (Website). It is possible to read the advisory at talosintelligence.com. This vulnerability is uniquely identified as CVE-2017-2790 since 12/01/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96442†). The entries VDB-97300 and VDB-97298 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 8.0

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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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: No
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-2017-2790 (🔍)
GCVE (CVE): GCVE-0-2017-2790
GCVE (VulDB): GCVE-100-97299
SecurityFocus: 96442 - JustSystems Ichitaro CVE-2017-2790 Heap-Based Buffer Overflow Vulnerability
OSVDB: - CVE-2017-2790 - JustSystems - Ichitaro Office - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 02/25/2017 09:58
Updated: 09/02/2020 14:32
Changes: 02/25/2017 09:58 (58), 09/02/2020 14:32 (5)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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